MACH® Series
Gas-Fired Boiler
Maintenance
Page 34
5.5.1 Manual Reset Service Codes
Code Lockout
Description
E 00
False flame.
A flame signal is present when it shouldn’t be.
E 02
Flame failure.
The burner did not light on startup, or loss of flame during run or high temp limit tripped.
E 03
Gas Valve Relay Board error. Electrical connection from control to GVRB open.
E 04
General lockout.
The power was lost after a lockout. The control loses the description of the lockout on
power loss.
E 08
Air pressure switch open.
The air pressure switch is open. Insufficient air flow.
E 12
Limit open.
High & Low Gas Pressure, Low water cut off(s). Optional External limit
E 18
Outlet high temp.
The outlet water temperature has exceeded the internal high temperature setting.
E 19
Inlet high temp.
The inlet water temperature has exceeded the internal high temperature setting.
E 25
Outlet temp rapid change.
The outlet water temperature is increasing too fast. Indicates low flow condition.
E 28
No blower feedback.
The blower should be running but it is not, or the feedback signal has been interrupted.
E 29
Blower feedback will not zero. The blower will not go to zero speed even though it should be off.
E 31
Outlet sensor shorted.
The outlet temperature sensor is short circuited.
E 32
Inlet sensor shorted.
The inlet temperature sensor is short circuited.
E 33
DHW sensor shorted.
The Domestic Hot Water temperature sensor is short circuited.
E 35
Flue sensor shorted.
The flue gas temperature sensor is short circuited.
E 36
Outlet sensor open.
The outlet temperature sensor is indicating an open circuit.
E 37
Inlet sensor open.
The inlet temperature sensor is indicating an open circuit.
E 38
DHW sensor open.
The Domestic Hot Water sensor is indicating an open circuit.
E 40
Flue sensor open.
The flue gas temperature sensor is indicating an open circuit.
E 52
High flue temp.
The flue temperature has exceeded the maximum allowable setting.
Note
: This list is not inclusive of all possible codes. If any other error codes are displayed on the boiler, call a
qualified and knowledgeable service agency.
Содержание MACH C1500
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Страница 51: ...MACH Series Gas Fired Boiler Appendix Page 47 8 0 APPENDIX Date Hi Low Fire O2 CO CO2 Stack Temp pH Action By...