Johnson & Starley Boiler Error Codes 2022

Johnson & Starley Boiler Error Codes

Johnson & Starley Boiler Error

SL NO  System Behaviour
1Ignition lockout
2High limit error
3No tacho from fan
4High flue gas tempurature
5Flame circuit error
6Valve drive circuit error
7Dual sensor error
8Default lockout
9Remote reset lockout
10ADC error
11CRC error – SW switch
12Flame signal lost 5 times in 4 minutes.
13Boiler flow temp sensor open circuit
14Domestic hot water (DHW) sensor short
15Domestic hot water (DHW) sensor open
16Low mains voltage
17Water pressure error
18OpenTherm sensor shorted to earth
19Water pressure too high
20No water pressure signal recievced fom MMI
21Boiler return temp. sensor open circuit
22Flue gaFlue gas temperature sensor short
23Flue gas temperature sensor open circuit
24Communication MMI – CVBC lost
Johnson & Starley Boiler Error Codes

Johnson & Starley Boiler Error Codes

Fault Code / Fault ImageSystem Behaviour
1Flame lockout after several ignition attempts
2False flame
3High water temperature limit
5No tacho from fan
8Flame circuit error
9Valve driver circuit error
11Flow/return sensor calibration error
12Default lockout
13Elapsed the number of retrials
21ADC error
26Flame signal lost 5 times in 4 minutes
31Centra heating supply sensor error (open or short)
44Central heating rerturn sensor error (open or short)
7High flue gas tempurature
25CRC error
30Boiler flow temprature sensor short circuit
31Boiler flow temperature sensor open ciruit
32Domestic hot water temperature sensor short circuit
33Domestic hot water temperature sensor open circuit
34Low mains supply voltage
37Low system water pressure
40High system water pressure
41No water pressure signal recievced fom MMI
45Flue gas temperature sensor short circuit
46Flue gas temperature sensor open circut
47Water pressure sensor open circuit
99Communication MMI -ESYS lost
E01Ignition lockout
E02False flame lockout
E03Overheat lockout
E05Fan fault
E08Flame circuit failure
E09Valve feed back error
E12EEPROM lockout
E15Sensor drift lockout
E16, E17, E18Sensor stuck lockout
E21ADC lockout
E33Return thermistor fault
E34Low power supply lockout
E35Flow thermistor fault
F07Exhaust sensor fault
F13Remote reset lockout
F37Low water pressure
F40Water pressure too high
F47Water pressure sensor not connected
F52Domestic hot water (DHW) sensor fault
F53Flue temperature sensor lockout