Pennco · Error codes
Pennco error codes and alerts
Identical code numbers can mean different things on different controllers, so every entry is tied to the documented series, controller and manual version. A code is never a diagnosis.
If you smell gas
- Stop what you are doing. Do not use phones, switches, matches or anything that can spark inside.
- Go outside and leave the door open behind you.
- Call the FortisBC 24-hour emergency line at 1-800-663-9911 or dial 911.
Only after that, call ROMA about the boiler. Official guidance: FortisBC gas leaks and odour.
Pennco 15B-K cast-iron gas boilers (Resideo control error codes, I&O 240012786)
4
Flame current lower than threshold. The control requires a strong enough signal to verify flame is present and the signal is too low; check …
Lockout
6
Flame sensed out of normal sequence. The control circuit is sensing flame rectification when there should be none; check the gas valve and t…
Details
18
Electronic failure. The control believes it is defective; try a reset by cycling power or pushing any key, check wiring to the pilot and mai…
Lockout
23
Flame sensed during Pre-purge. The pilot is being sensed too soon in the ignition sequence; check the gas valve for zero manifold pressure w…
Lockout
24
Flame sensed during Post-purge. The pilot is being sensed too late in the shutdown sequence; check the gas valve for zero manifold pressure …
Details
32
Temperature sensor failure. The temperature sensor is not providing an expected reading; check the sensor is plugged into the control board …
Details
55
Damper end switch failed to close. The vent damper must confirm it is open (the switch closes to do this) and the control did not see it; ch…
Details
56
Damper end switch failed to open. The vent damper must confirm it is closed (the switch opens to do this) after the heat cycle and the contr…
Details
57
Flame rod shorted to burner ground. The control did not detect a voltage difference between the flame sense wire and ground; check the flame…
Lockout
58
AC line frequency error. The AC frequency is incorrect or noisy; verify no electric or electronic devices are generating electromagnetic int…
Details
59
Line voltage error. The line voltage (or possibly the thermostat) is either too high or too low; the source problem is likely in the electri…
Details
60
Thermostat input higher than threshold. Some types of thermostat may not be compatible with the control circuitry; verify the boiler works b…
Details
61
Line voltage unstable. The line voltage is unstable, possibly because too many heavy loads are switching on and off; check the branch circui…
Details
62
Soft Lockout-Max retries exceeded. The control sensed consecutive instances of no flame signal while trying to light the pilot; check the co…
Lockout
63
Soft Lockout - Max recycles exceeded. The control sensed consecutive instances of loss of pilot flame signal after the main burners lit; che…
Lockout
64
Soft Lockout - Internal failure. The control is sensing something wrong with the electrical circuitry; check all wiring against the wiring d…
Lockout
65
Hard Lockout - Temperature above limit (Soft Lockout on S9361A2098). The control sensed a water temperature too high for safe boiler operati…
Lockout
Pennco FSB cast-iron gas boilers (integrated boiler control error codes, I&O 240013101)
2
Pressure switch failed to open (stuck closed). The control relies on the pressure switch to verify the inducer motor is running and the vent…
Details
4
Flame current lower then threshold. The control requires a signal of at least 1 uA to verify flame is present and the signal is too low; che…
Lockout
6
Flame sensed out of normal sequence. The control circuit is sensing flame rectification when there should be none; check the gas valve and t…
Details
18
Electronic failure. The control believes it is defective; try a reset by cycling power or pushing any key, check wiring to the pilot and mai…
Lockout
23
Flame sensed during Pre-purge. The pilot is being sensed too soon in the ignition sequence; check the gas valve for zero manifold pressure w…
Lockout
24
Flame sensed during Post-purge. The pilot is being sensed too late in the shutdown sequence; check the gas valve for zero manifold pressure …
Details
29
Pressure switch failed to close (switch stuck open). The pressure switch must close at the start of the heat cycle but did not; check the pr…
Details
32
Temperature sensor failure. The temperature sensor is not providing an expected reading; check the sensor is plugged into the control board …
Details
57
Flame rod shorted to burner ground. The control did not detect a voltage difference between the flame sense wire and ground; check the flame…
Lockout
58
AC line frequency error. The AC frequency is incorrect or noisy; verify no electric or electronic devices are generating electromagnetic int…
Details
59
Line voltage error. The line voltage (or possibly the thermostat) is either too high or too low; the source problem is likely in the electri…
Details
60
Thermostat input higher then threshold. Certain types of thermostat may not be compatible with the control circuitry; verify the boiler work…
Details
61
Line voltage unstable. The line voltage is unstable, possibly because too many heavy loads are switching on and off; check the branch circui…
Details
62
Soft Lockout-Max retries exceeded. The control sensed consecutive instances of no flame signal while trying to light the pilot; check the co…
Lockout
63
Soft Lockout- Max recycles exceeded. The control sensed consecutive instances of loss of pilot flame signal after the main burners lit; chec…
Lockout
64
Soft Lockout- Internal Failure. The control is sensing something wrong with the electrical circuitry; check all wiring against the wiring di…
Lockout
65
Hard Lockout- Temperature above limit. The control sensed a water temperature too high for safe boiler operation; check that water is circul…
Lockout
Talk to a boiler technician
Describe what the boiler is doing and get a straight answer about the next step.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.