Thermostat was not supplying a call for heat to eim to bring unit on. Reset thermostat by pulling off wall and removing coin cell battery for 30 seconds and then putting it back in and putting it back on wall. Thermostat came on normally. Reset date and time. Turned on thermostat to cycle system. Everything starts and runs normally again!

Found system boiler parameters on board keeping boiler from going into high fire and maintaining 90°f after conferring with technical support changed system boiler parameters to allow system to fire in high fire. Watched system climb to 180° set point temperature and satisfy boiler operation. Everything runs normally again.

Found GFI tripped for condensate pump. Rest GFI and tested system operation. System is now working properly.

Found wire rub on low pressure switch wire causing unit to blow dude. Repaired wire insulation and cycled to check operation.

Found r wire inside cabinet had exposed itself through rub on the wire insulation causing unit to burn 3 amp fuse. Repaired wire and tested system to check operation. Everything came on and cycled normally. Replaced fuse.

Replaced heat strip under warranty. Tested amp draw of heat strip. Everything is working as designed. Wires on ac relay were melted

serviced and inspected gas heating system checking air flow, temperature rise, electrical, gas pressure, safeties, controls and limits, heat exchanger and venting. cleaned and checked system components to manufacturer specifications and performed combustion inspection. Blower is pulling 1.4 amps Inducer is pulling .7 amps Oxygen is 9 percent Co is 25ppm Temperature rise is 48.4 System is working to manufacturer specifications

Replaced thermostat and tested system operation, system is working to manufacturer specifications.

Electric heat strip has failed again - this time on both strings - causing system to run long cycles and not heat enough during defrost cycles. Recommend replacement of 10kw heat strip - fully covered under warranty.

Both bathroom and bedroom ducts were put back up and no damage was done to either duct

Found mhk2 thermostat has a discrepancy of 2 degrees at thermostat face. Recommend we change system thermostat - will need to reestablish link with mhk2 dongle in air handler by resetting dongle in air handler. Will call Monday to give specific time of arrival.

When I arrived thermostat was calling for heat but nothing was working. Took door off of indoor unit and everything started working. Cut and rewired all low voltage connections, tested all high and low voltage connections. Cycled system three times and everything is working.

AHRI# 211289256 18.7 SEER2; 12.4 EER2; 9.2 HSPF2 Make: Mitsubishi Model: SUZ-KA18NAHZ Heat Pump SSVZ-KP18NA Air Handler MHK2 Thermostat Installation shall include: Equipment specified above plus materials and labor to include: • All work will be completed in a professional workmanlike manner. • Wew ill replace existing refrigerant lines with properly sized line set for this system. • We will add a buck transformer to the outdoor unit to protect system from surges and voltage spikes. • Mitsubishi Factory Warranty: Twelve (12) Years Limited Parts. • Necessary Electrical is included. • One (1) Year Labor Warranty Provided by Comfort Central, Inc. • First year Comfort Club is included. • Ten (10) Year Guarantee on Comfort Central, Inc. Workmanship.

Replacement of 24x16 filter grille and customer provided filter.

Replaced heat strip. Tested heat strip 39amps. No other issues found

5 registers would not close. Remove the registers found zip screws, penetrating inside the boot, not allowing the louver to close or open. Unscrewed the screws inside the boot with a wrench until the screw was far enough away from the louver that the register would open and close. All registers now should open and close all the way.

Performed heating maintenance tune up service on dual fuel system. Everything looks and runs great!

Performed heating maintenance tune up service on dual fuel heating system.

serviced and inspected heat pump system, including electrical, safeties, controls, reversing valve and defrost cycle to manufacturer specifications. Heat strips is pulling 18 amps Blower is pulling 2 amps Compressor is pulling 14 amps Outdoor fan is pulling 1.8 amps Temperature difference between return and supply for heat pump is 38° Temperature difference for heat strips is 20 Defrost cycle is working to manufacturer specifications Replaced filter System is working great. serviced and inspected gas heating system checking temperature rise, electrical, gas pressure, safeties, controls and limits, heat exchanger and venting. cleaned and checked system components to manufacturer specifications and performed combustion inspection. Co is 25ppm Oxygen is 12.6% Inducer and pump are pulling 2 amps All safeties are working to manufacturer specifications All zone valves are operating properly

Serviced and inspected gas heating system checking air flow, temperature rise, electrical, gas pressure, safeties, controls and limits, heat exchanger and venting. cleaned and checked system components to manufacturer specifications and performed combustion inspection. Temperature difference between return and supply is 55° Co is 47 ppm Oxygen is 9.5% Inducer is pulling .4 amps Blower motor is pulling 1.3 amps All safeties and components are working to manufacturer specifications System is working great!

Pumped down refrigerant. Removed bad filter dryer installed new filter dryer. Pressurized system at 200 psi for 10 minutes no leaks. Pulled vacuum on system to 500 µm. Started and tested heat operation. Found our temperature difference was still 14°. At 50° ambient temperature temperature difference at the equipment should be at least 20 or higher. I checked the blower to make sure it was set properly. I added 1 pound of refrigerant to see if that would make a difference. Neither one of these helped.I believe the outdoor unit TXV is bad and not working as designed. To replace the outdoor unit, TXV is $934 plus tax

Found system heat pump capacitor shorted by mouse and wiring to capacitor burned due to rodent chew. Replaced capacitor and fixed wiring under warranty and cycled system to check operation.

Performed heating maintenance tune up service on heat pump system checking all electrical components, refrigerant balance, unit start up, operation, defrost, shutdown. Checked unit filter. Repositioned emergency drain pan float switch so unobstructed by evaporator coil of float switch were to engage. Everything looks and runs great!

No heat Heat pump breaker was reset this morning. Started system forced into high speed ramped up to 60 Hz. Couldn’t find any issues. Cycled system five times. May have just been a glitch on the computer board that had locked it out and needed a hard reset

Removed eco settings from thermostat and cycled system to check operation. System will now operate in a permanent hold mode maintaining setpoint temperature. Thermostat works as programmed and intended. Equipment works as intended. Believe system had struggled to maintain temperature as system would slip into "vacation" or "eco" settings and set the thermostat back from an unrecoverable position during extreme temperatures. Recommended watching system for a couple of days and reporting back how system is maintaining temperature now.