Diagnostics and Specific Fault Finding
Gas Heating diagnostics and fault finding
TQ DGH - FC4, FC5, FC9, FC15 and FC16 Thermistor related faults TQ Thermistor & Bracket Pt# 651912 TQMD Thermistor & Lead Pt# 647067 TH/THM T...
Fri, 13 Jun, 2025 at 2:07 PM
TQ DGH - FC8, FC17 and FC18 Condensate detected Fault code history can be accessed: SETTINGS/SERVICE/GAS HEATER 01/7378 CONT/FAULT LOG YouTube Vid...
Fri, 2 May, 2025 at 3:05 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...
Fri, 2 May, 2025 at 2:53 PM
TQ & TH Thermistor resistances - Should read 3.3 kohms at 25°c – FC4, FC5, FC9, FC15, FC16 TQ Thermistor & Bracket Pt# 651912 TQMD Thermistor ...
Fri, 13 Jun, 2025 at 2:09 PM
TG, TH DGH FC19 resetting and checking for FC10's in Spectrolink fault code history Click here to view YouTube video Spectrolink SCC accessing and c...
Thu, 4 Jul, 2024 at 9:00 AM
TQ DGH - FC53 (24v circuit Voltage rail error) Fault code history can be accessed: SETTINGS/SERVICE/GAS HEATER 01/7378 CONT/FAULT LOG YouTube Video...
Wed, 15 May, 2024 at 2:14 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
TQ DGH - FC30 Loom ID incorrect Fault code history can be accessed: SETTINGS/SERVICE/GAS HEATER 01/7378 CONT/FAULT LOG YouTube Video - MagIQtouch H...
Wed, 25 Sep, 2024 at 10:10 AM
TQ DGH - FC48 ICS micro flame mismatch Fault code history can be accessed: SETTINGS/SERVICE/GAS HEATER 01/7378 CONT/FAULT LOG YouTube Video - MagIQ...
Wed, 15 May, 2024 at 2:24 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