Diagnostics and Specific Fault Finding

Gas Heating diagnostics and fault finding

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
TQ DGH - FC10 HX OT1 Open (potentially restricted or reduced airflow)
Fault code history can be accessed: SETTINGS/SERVICE/GAS HEATER 01/7378 CONT/FAULT LOG YouTube Video - MagIQtouch Heater Fault Log  HEATER...
Wed, 15 May, 2024 at 2:26 PM
TA5 TE5 TE4 June 2004 to Feb 2005 SPI control system service diagnostics
TA5 TE5 TE4 June 2004 to Feb 2005 SPI control system service diagnostics  Attached is full version of Pdf TA5 TE5 TE4 June 04 to Feb 05 Pages from April 20...
Fri, 20 Mar, 2020 at 2:01 PM
THM FC2 Pre Serial # T12071732
THM Ducted Gas Heater FC2   IMPORTANT: The Fenwal MCB upgrade kit contains a modified wiring loom that mus...
Wed, 24 May, 2023 at 11:49 AM
THM replacing MCB (Modulating Control Board)
THM replacing MCB (Modulating Control Board) 
Wed, 24 May, 2023 at 12:05 PM
TG / TH DGH FC1, where combustion fan starts as soon as it calls for heater without 10 second delay
TG / TH DGH FC1, where combustion fan starts as soon as it calls for heater without 10 second delay   Click here to view YouTube video Spectrolink SC...
Tue, 19 Aug, 2025 at 9:22 AM
TG, TH DGH FC11 displayed to user on Spectrolink
TG, TH DGH FC11 displayed to user on Spectrolink Click here to view YouTube video Spectrolink SCC accessing and clearing fault code history ...
Tue, 19 Aug, 2025 at 9:21 AM
Braemar DGH Motor Replacement Instructions TB, Johnson, Fenwal, SPI/MPI and BSC Control
Braemar DGH Motor Replacement Instructions TB, Johnson, Fenwal, SPI/MPI and BSC Control
Mon, 15 May, 2023 at 1:05 PM
Dual spark electrode replacing single probe spark electrode - Flame Sensor & Dual Probe Sparker Replacement - suits TQ, TG and TH ducted gas heaters
Dual spark electrode replacing single probe spark electrode - Flame Sensor & Dual Probe Sparker Replacement - suits TQ, TG and TH ducted gas heaters ...
Tue, 3 Jun, 2025 at 10:33 AM
TQ FC00 - heater has recovered from a fault, but the lockout state on the ICS PCB had a glitch and did not update.
TQ FC00 - heater has recovered from a fault, but the lockout state on the ICS PCB did not update.  May happen when there is a power outage causing a gli...
Tue, 25 Jun, 2024 at 10:35 AM