Diagnostics and Specific Fault Finding
Gas Heating diagnostics and fault finding
TQM Modulating heater ICS filter Pt# 652063 FC39 and combustion air sensor error & FC32 combustion air pressure too low at start If a TQM modu...
Tue, 18 Jun, 2024 at 10:20 AM
TG TH - FC11 Displayed to user on the Spectrolink CC control Click here to view YouTube video Spectrolink SCC accessing and clearing fault code history ...
Tue, 24 Oct, 2023 at 4:14 PM
TG / TH DGH FC12, FC13, FC14 P-100 (4/5 star) pressure switch related faults FC12: P-100 closed at start (4/5 star) FC13: P-100 failed to close (4/5 star...
Tue, 24 Oct, 2023 at 4:15 PM
TG / TH DGH FC1, FC2, FC3 P-100 (3 star) P-55 (4/5 star) pressure switch related faults FC1: P-100 (3 star) or P-55 (4/5 star) closed at start FC2: P-...
Tue, 24 Oct, 2023 at 4:16 PM
TH DGH FC8 FC17 FC18 - Condensate pressure switch FC8 - Condensate pressure switch closed at start (5 star) FC17 - Condensate detected during run (5 st...
Thu, 6 Jun, 2024 at 8:51 AM
TQ DGH - FC7 intermittent TQ3* & BMQ3* Cross ignition air disturbance Fault code history can be accessed: SETTINGS/SERVICE/GAS HEAT...
Wed, 15 May, 2024 at 2:08 PM
TQ & TH Thermistor resistances - Should read 3.3 kohms at 25°c – FC4, FC5, FC9, FC15, FC16 TQ Heater Thermistor related fault codes ...
Thu, 27 Jul, 2023 at 12:18 PM
TQ / TH / TG - Gas valve 1 & 2 stage confirming / testing operation
Tue, 5 Sep, 2023 at 2:14 PM
Start-up and Run Flowcharts TQ Two-Stage TQS3 TQ4 TQ5 SSQ4
Thu, 27 Jul, 2023 at 12:00 PM
Start-up and Run Flowcharts TQ Modulating TQS4 TQS5 TQM5 TQA5 TQMD5 TQM6 TQS6 TQS7 SSQ5
Mon, 10 Jul, 2023 at 9:08 AM