Diagnostics and Specific Fault Finding

Gas Heating diagnostics and fault finding

TQ 24Vdc Combustion Fan (modulating heaters) - testing operation
TQ 24Vdc Combustion Fan (modulating heaters) - testing operation   Check 24VDC supply to combustion fan (pins 1 and 5 at 5-way con...
Tue, 2 Jul, 2024 at 3:08 PM
TQ DGH - FC64 Modulating Combustion fan not spinning
TQ DGH - FC64 Modulating Combustion fan not spinning Fault code history can be accessed on MagIQtouch controller: SETTINGS/SERVICE/GAS HEATER 01/7378 C...
Tue, 2 Jul, 2024 at 3:10 PM
Combustion fan suction pressure using a manometer - correct method of testing for accurate readings during normal heater operation
Combustion fan suction pressure using a manometer - correct method of testing for accurate readings during normal heater operation 
Tue, 23 Jul, 2024 at 2:00 PM
Room Fan Motor Testing for TQ/TQM Heaters
Room Fan Motor Testing for TQ/TQM Heaters  Overview Most TQ/TQM heater models include a Forward-Curved Centrifugal (FCC) room fan, typically sized 9x7 ...
Fri, 13 Jun, 2025 at 9:31 AM
TQ TQM FC51 Micro 2 Error Found - Error Code: (51) Micro 2 Error Found
TQ TQM FC51 Micro 2 Error Found - Error Code: (51) Micro 2 Error Found Description: The ICS (Integrated Control System) has detected an error on ...
Wed, 11 Jun, 2025 at 12:41 PM