20 Most Recent Carrier 52CQ-312-4 Comfort Series Heat Pump Air Conditioner - Page 2 Questions & Answers

Hi there, Would this be a preheat / comfort pro APU? If so I would start with removing the top cover on the APU. There will be a fuse holder with a 20 amp fuse on the back wall on the left side of the APU above the APU controller. Check and see if the fuse is blown. If it's not then the CCU board under the bunk/ bed isn't seeing power. Either 12v harness or the communication harness both from the APU controller to the CCU board are rubbed on the frame, or the CCU board isn't transferring power properly. The CCU board is under the bunk. There are 4 3/4 bolt's that hold the lid on. Start the APU and look at the board you should have green light's light up. these light's are called input light's. Then chose a function on the driver control panel as in heat, a/c, low or high fan and see if they come on. If the driver control pane are showing the function on look down at the CCU board and see if there are orange light's on. these light's would be your output light's. There's a lot of cause's for this problem if you need further help feel free to ask. Thank's

Your answer is on this page carrier furnace error code 24 - ROMA Heating & Cooling ' HVAC Contractors: Furnace, Boiler and Heating Repair & Servicing

I have found that turning off all power for a minimum of two hours will reset most errors,. When you switch the breaker back on, you will hear relays clicking as part of the self testing. Wait 15 minutes before operating the unit.

It is not possible to directly connect a six wire blower motor to a four wire blower motor because they have different wiring configurations. However, you may be able to modify the wiring to make it work, but this would require a thorough understanding of electrical circuits and potentially void the warranty of the blower motor. If you are not familiar with electrical systems and wiring, it is recommended to consult a professional electrician or HVAC technician to ensure safe and proper installation. They will have the necessary knowledge and expertise to assess the situation and provide suitable solutions.

that is the classic symptom that the Start/Run Capacitor has failed. They give the motor a jolt to get them moving. https://www.google.com/search?q=carrier+38tkb030+capacitor+replacement ..

Well you need to set your defrost cycle on every 30min,that doesn't mean it comes on every 30 min,it just checks it,there's little black or white switches on the board and on the door it show you how to change them for your time,

Unplug it and do a continued check between the prong,

Low refrigerant levels (most common cause.) it sounds like your outdoor unit is running, but the AC is blowing out hot air, start with cleaning the condenser coils. Spray the coils with a water hose, clearing away the loose dirt and foliage. If the AC continues to blow warm air, call an HVAC expert for help with refrigerant levels.

Carrier says they carry them on their website. Really though, you need a qualified engineer with gauges and refrigerant gas. There isn't much you can do yourself. https://www.google.com/search?q=Carrier+Heat+Pump+Model+25HBC+service+manual ..

Get yourself up to the machine on a safe platform. Remove any covers that will come off easy, or tie them up out of the way. Remov e the filters. Often the whole front can be removed by just taking out a couple of screws. Once exposed, look for something out of place. Put the louver back where it belongs to see how the hinge works. It may have jumped out of it's proper position. Ease it back in position and check it for freedom of movement. If it looks good, put it all back together.

here is link to codes copy and paste https://acerrorcode.com/carrier-cassette-air-conditioner-fault-codes.html ..

I would suggest first removing all thermostat wires from their terminals on the control board. Does fan relay coil de-energize? If not, likely control board problem. Look for stray metal small pieces of wire or screws lodged on or beneath control board before totally condemning it. If the fan relay coil does de-energize, start narrowing issue down by connecting thermostat wires one at a time starting with 24v Red, then 24v Common if present (Brn? ), then Cooling Yellow, Then Fan Green and then Heat White. It could possibly be a short in the thermostat wire.

Check flame sensor is clean

Question edited for clarity, add maker and spelling of 'Xarios'.

Thread: Error A26 whit Xarios 150 - Refrigeration-Engineer.com

https://www.refrigeration-engineer.com > showthread Feb 22, 2008 - The A26 fault code indicates that HGS2 coil is faulty not the valve itself. Check the connections of the coil and also check the micro multiplug ... Thread: Need Fault Codes For Carrier Xarios 500 Sep 25, 2009 Thread: Xarios 300 - Refrigeration-Engineer.com Apr 18, 2008 xarios 150. A25 fault code. ??? - Refrigeration-Engineer.com May 8, 2010 Thread: Carrier Xarios 300 - Refrigeration-Engineer.com Jun 7, 2007 More results from www.refrigeration-engineer.com Missing: heating. ‎' Must include: heating.

Carrier 35X Operator's Manual [Page 27] - Alarm List

https://www.manualslib.com > ... > Operator's manual Drain Water Resistor Heater (DWR1) High amp draw ... A26. Condenser Pressure Control Valve (HGS2) Open Circuit ... Alarm/Error Description.

• Fault Alarm Display - Carrier XARIOS X150-04 Operator's ...

  https://www.manualslib.com > ... > Operator's manual 1. Press the SET key (6.) during 5 seconds to access to malfunction codes. · 2. Press the - - or + key (5. or 7.) to display alarms. -. Current malfunctions: AXX.

Looks like 5 tons.

Check the wiring diagram to see if the thermostat is in the heating circuit or not. If the heating element is not getting power the thermostat might be at fault.