Error, fault and alarm codes of products - what each code means, its causes and what to do - read from the manufacturers’ manuals, with the manual page each answer comes from.
The system detected no voltage in the probe power supply. The manual lists no action for this code.
Ebr code indicates broken or unconnected strain-gauge probe due to no probe power supply. The manual lists no action for this code.
Err code indicates a short circuit in PT100 or broken transmitter. The manual lists no action for this code.
Probe broken or input values exceed maximum limits The manual lists no action for this code.
The process variable has exceeded its maximum scale limit. The manual lists no action for this code.
Process Variable is below the minimum scale limit. The manual lists no action for this code.
All 14 error codes of the Gefran 2400 Gefran 2400 with their meaning, causes and what to do, taken from the manufacturer's manual with page references.
Fan deviation more than 300 rpm longer than 1 minute when fan speed > 4200 rpm The manual's first action is: “A33 Blower Error Check wiring Connection to Blower Press OK to reset”
Air flow switch error post purge The manual's first action is: “A26 POF Switch Check Blower and Air Flow Proving Switch Press OK to reset”
Air flow switch error pre purge The manual's first action is: “A25 POF Switch Check Blower and Air Flow Proving Switch Press OK to reset”
The flue switch is blocked during pre-purge. The manual's first action is: “A24 Pressure Switch Check wiring To pressure switch”
Blocked flue switch during Post purge The manual's first action is: “A23 Pressure Switch Check wiring To pressure switch”
Flame detected just before gas valve opened The manual's first action is: “A20 Flame snse wo ht Immediate Lock Out! Call Tech Service PRESS HELP”
Flame still present 10 sec. after closing the gas valve The manual's first action is: “A19 Flame snse wo ht Immediate Lock Out! Call Tech Service PRESS HELP”
Fan pressure switch tripped three times during burn state with 15-second intervals between retries. The manual's first action is: “A08 Proof of Fan err Check air flow for obstructions PRESS HELP”