Below, I will break down the reasons behind this water heater issue. If still open, replace the compressor. Low voltage wiring at R and C is damaged or miswired. Looks like 1/4" and that will not work with 410A. If the motor runs but air doesnt move, the connecting belt may the problem. So, lets dive in. FIX: LPC has opened 3 times in the same cooling operation, the ICC has locked out the compressor to protect it. Five Stars. You can enter the serial number for your Rheem product to see if it's registered. 212 HVAC assumes no responsibility for any accidents or troubles caused in the disassembly or repair of equipment performed according to information on this page. WebRheem furnaces are all equipped with an advanced 7-segment diagnostic display you can use as a guide if something goes wrong with your heating system. Have problem corrected before diagnosis continues. Display Codes L21 flashing Diagnostic Description Active Safety, Low Pressure Control Trip. The indoor Air Handler is Rheem model - HM2417JA - 24,000 BTU/7.0 kw. He was very knowledgeable. As soon as we get our audit results Twintech will be installing our heat pump. FIX: LPC has opened 3 times in the same cooling operation, the ICC has locked out the compressor to protect it. 5- In "Product model put "Huawei Y300-0000" (use this as ALE-L21 is not listed BUT It will work!) Air, noncondensibles, or moisture in system. RESULT: Unit has received a command for first stage heat pump.FIX: Normal operation. Pull out the front panel by unscrewing the four screws from the top and the bottom of the front panel. If yes, understand the heat exchange gets blocked or dirty. Upon investigating it was observed that no flame present. Check control for proper system operation. RESULT: Low Line Voltage or No Line Voltage Fault.FIX: Check incoming line voltage to the disconnect and unit. RESULT: Compressor limit has opened four (4) times within a call for operation.FIX: Outdoor coil is dirty (cooling mode). Power element superheat out of adjustment internally, Heat source on; miswired or faulty control, Suction or liquid line subjected to high heat. Now, verify the heat exchanger temperature to see whether the measured temperature matches that indicated by 4y or not. 21 Low Pressure Control Open The ICC detects the LPC is open. If youre in the need for service for your Rheem water heater, then click here to find a nearby, independent Rheem Pro with our Find a Pro tool, 1100 Abernathy Road, Suite 1700 Atlanta, GA 30328, Rheem Manufacturing ranks as the global leader in the manufacture of high-quality, sustainable, and innovative water heaters, tankless water heaters, air conditioners, furnaces, pool heaters, and HVAC systems for residential and commercial applications, and is a full member of AHRI, the, How to Locate and Read your Rheem Water Heating Serial Numbers, Inflation Reduction Act and Tax Credits Find out more, Air-Conditioning, Heating, & Refrigeration Institute. Twintech recently installed a new furnace for me. When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions. "Cut it twice and it is still too short". The Fora platform includes forum software by XenForo. Needless to say; how uncomfortable it is if you get no hot water heater on an ice-cold day in winter. Should be approximately 400 CFM per ton. Indoor CFM 800. Compressor stuck, grounded or open motor winding, open internal overload. So 1/4" measures 1/4" outside dimension. (Sight-Glass Clear), Low Suction Pressure + High Superheat + High Sub-Cooling =, Low Suction Pressure + Low Superheat + High Sub-Cooling =, Low Suction Pressure + High Superheat + Low Sub-Cooling =. Rheem RAPL-036JEZ - L21 Code - LPC tripping. Check for open compressor internal protector. If it gets dirty, the heat exchanger fails to exchange the heat and causes your water heater to throw error message 29. Follow the below steps to learn how to replace PCB on a Rheem tankless water heater. d4 (Device) Memory Card Invalid for Device, Check memory card to ensure it matches device, d8 Old Shared Data System data is obsolete. Check. A clogged air inlet filter, dirty heat exchanger fins, and bad heat exchanger thermistor are some culprits behind this issue. This Rheem error codes guide is made for the person who might want to try and fix their furnace. Error code search offers information on the cause of the malfunction and the status of your air It will help you eliminate the error code and let your water heater run smoothly. RESULT: The sensor detects an abnormally low or high coil temperature.FIX: Replace the sensor. This is my second time using this company as I was fully satisfied with my previous air conditioning unit installation. That conduit coming out of the right-hand side. Check the furnace igniter for cracks, if it is then replace the igniter. They dont use flashing LED light sequences to indicate errors, like other brands. non-condensibles or moisture in system, Recover refrigerant, evacuate & recharge, add filter drier. This level of service from a Business that is almost unknown today. The high pressure control opens at 610 PSIG, Interconnecting low voltage wiring damaged, Run or start capacitor failed (single phase only), Start relay defective 9single phase only), Check for correct voltage at compressor check & tighten all connections. If the resistance of the heat exchanger thermistor is normal (4k to 10K ohms) but the water heater shows the error code 29, I assure you that the PCB is bad. I checked the condenser unit and found the 7-segment LED display diagnostic code L23, this code refers to a High Pressure Control lockout. Check compressor windings for continuity. Restriction in liquid line, expansion device, or filter drier, High head, high or normal vapor pressure Cooling mode. However, some of the typical problems are not that serious and dont require much more than basic skills. 83 Condenser Coil Temperature Fault The sensor detects an abnormally low or high coil temperature, 84 Outdoor Ambient Temperature Fault The sensor detects an abnormally low or high outdoor ambient temperature. RESULT: The data in the memory card inserted into the control board does not match the data in the control.FIX: Check memory card to ensure it matches device. Would you please tell us how we can improve it? RESULT: Anti-short cycle timer (3 minutes) or Minimum run timer (30 seconds) active.FIX: The unit has received a command for first stage cooling during an active anti-short cycle timer or minimum run timer. The led light is flashing code 3. Also see high head pressure remedy. Liquid line restriction. I think Rheem allows 1/4" on their 2 ton. I.D. Now, you can ask- how can I determine if the heat exchanger gets dirty? Now, install a new PCB assembly and put everything back into its place to complete the installation. Means your eco has tripped. Evacuate and recharge. WebA Rheem tankless water heater has over 30 potential codes, and the solution will differ depending on the specific make and model of water heater that you have. Wait unit timer has expired or press the TEST button to defeat short cycle delay. Check for correct voltage at compressor. Best of luck. I highly recommend the TwinTech team - just an outstanding job at a reasonable price point. RESULT: The unit is undergoing a defrost cycle.FIX: Normal operation. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. First, determine the type of equipment from the two categories shown below. Rheem Tankless Water Heater Error Code 29. Here, we will list the meaning of specific Rheem furnace error codes. Thank you Twintech! This page provides a simple explanation concerning content relating to error codes and their possible causes. The photos and diagrams will help you locate the model and serial numbers of your equipment, if they are not found on your original warranty or sales invoice. Your Rheem water heater will throw this faulty code because of a blocked heat exchanger, abnormal resistance to the heat exchanger thermistor, and a bad PCB. The unit has received a command for first stage cooling during an active anti-short cycle timer or minimum run timer. Wait until unit timer has expired or press the TEST button to defeat short cycle delay. Clean quiet easy going didn't mind when I poked my head in to see progress. Greg did a great job installing, clean and on time. At compressor terminals, voltage must be within 10% of rating plate volts when unit is operating. Manage Settings Please note that the content may slightly differ depending on models. Wait at least 3 hours for overload to reset. "press the red button"!!!) Check compressor windings for continuity. FIX: Check incoming line voltage to the disconnect and unit. Friedrich air conditioner troubleshooting, Status/Possible Cause Troubleshooting Information, c Anti-short cycle timer (3 minutes) or Minimum run timer (30 seconds) active. CODE: 13 PROBLEM: The flame was lost. will cause low pressure issues. I have a whole home surge protector installed by Progress Energy (at the meter). RESULT: The secondary voltage at R and C is below 18VAC.FIX: Control transformer overloaded. Excessive refrigerant in compressor. In some cases air conditioning system repair can be rather complicated for an average user. Goodman Furnace Wont Ignite How to Solve It? Components Coils, Heaters, Motors, etc. I will recommend to anyone in need of heating or cooling! Seized bearings in compressor. RESULT: Active Protection, Low Pressure Control Trip.FIX: LPC has opened 3 times in the same cooling operation, the ICC has locked out the compressor to protect it. Miswiring of communications (communication light on continuously). L21 Active Protection Low Pressure Control Trip, LPC has opened 3 times in the same cooling operation, the ICC has locked out the compressor to protect it. Excessive refrigerant charge. He approached the job as if he was installing in his own home. As a nurse, indoor air quality is a high priority so the variable speed motor running continuous is so good. Replace TXV. and was easily contacted to ensure customer satisfaction. RESULT: Anti-short cycle timer (3 minutes) or Minimum run timer (30 seconds) active.FIX: The unit has received a command for second stage cooling during an active anti-short cycle timer or minimum run timer. What's the OD of the old liquid line? Expansion valve is not operating correctly. Even told me what the issue was and I was able to fix it. After installing the recommended units, all rooms stay at a consistent temperature- even the finished basement. Witch on the door it says ( limit switch open ). The ICC will automatically scroll through stored faults on the 7-segment display. Probably overcharged. Abnormal Resistance To Heat Exchanger Thermistor, Rheem Tankless Water Heater Troubleshooting Manual, Rheem Water Heater Gas Valve Problem: Heres What To Do, Rheem Water Heater Pilot Light Wont Light, Basement Watchdog Battery Alarm [Corroded Terminals Or Bad Battery], Basement Watchdog Pump Was Activated Alarm. The heat exchanger should be free from scale build-up for normal water heater operation. Plumber: PatrickJ1021 So that code is a safety feature. At compressor terminals, voltage must be within 10% of rating plate volts when unit is operating. In some cases air conditioning system repair can be rather complicated for an average user. If it isnt running, the motor has likely broken. Check for broken Wires, loose connectors, or miswired compressor. Check for broken Wires, loose connectors, or miswired compressor. If follows the example below: To verify if your Rheem water heater is still under warranty, please click here to visit our water heater verification tool at our warranty website which will require your serial number. It will work! Active Safety, Low Pressure Control lockout connectors, miswired., grounded or open motor winding, open internal overload 's the of! So the variable speed motor running continuous is so good, install a new PCB assembly and everything... Will be installing our heat pump during an Active anti-short cycle timer or minimum run.! Error codes guide is made for the person who might want to try and their! Unit installation when posting in certain forums, knowing your location will others! Work! is operating code: 13 problem: the secondary voltage at R and C is or! 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