Patterson-Kelley MACH-05 사용자 설명서

 

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5.5.1  Manual Reset Service Codes 
 

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. 

E 03 

Gas Valve error. 

Check all gas valves electrical connections. 

E 04 

General lockout. 

The power was lost after a lockout.  The control loses the description of the lockout on 
power loss. 

E 05 

Internal control failure. 

Call for service. 

E 06 

Internal control failure. 

Call for service. 

E 07 

Internal control failure. 

Call for service. 

E 08 

Air pressure switch open. 

The air pressure switch failed to close to indicate sufficient air flow to start the boiler. 

E 11 

Internal control failure. 

Call for service. 

E 12 

External limit open. 

One of the external limits has opened. (High/Low Gas Pressure, High Temp, Low water). 

E 13 

Internal control failure. 

Call for service. 

E 14 

Internal control failure. 

Call for service. 

E 15 

Internal control failure. 

Call for service. 

E 16 

Internal control failure. 

Call for service. 

E 17 

Internal control failure. 

Call for service. 

E 18 

Outlet high limit temp. 

The outlet water temperature has exceeded the internal high limit temperature setting. 

E 19 

Return high limit temp. 

The return water temperature has exceeded the internal high limit temperature setting. 

E 25 

Outlet temp rapid change. 

The outlet water temperature is increasing too fast.  Indicating 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 

Return sensor shorted. 

The return temperature sensor is short circuited. 

E 33 

DHW sensor shorted. 

The DHW 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 

Return sensor open. 

The return temperature sensor is indicating an open circuit. 

E 38 

DHW sensor open. 

The DHW sensor is indicating an open circuit. 

E 40 

Flue sensor open. 

The flue gas temperature sensor is indicating an open circuit. 

E 44 

Internal control failure. 

Call for service. 

E 52 

High flue temp. 

The flue temperature has exceeded the maximum allowable setting. 

E 60 

Internal control failure. 

Call for service. 

 
 
Note:  When an Internal Control Failure occurs, as identified by E-Codes listed above, the failure is internal to the 
MCBA and replacement of the MCBA is required.  A qualified service technician must be called to replace the 
MCBA device.