Errors

• - select type -
• Challanger Solo CC50s
• Challenger CC85
• Challenger Combi CC105
• Challenger Combi CC125H
• Challenger Solo CC105s
• Challenger Solo CC125Hs
• Challenger Solo CC150s
• Challenger Solo CC85s
• Keystone KS 1000
• Keystone KS 1200
• Keystone KS 399
• Keystone KS 500
• Keystone KS 600
• Keystone KS 750
• Keystone KS 850
• Keystone KW 199
• Keystone Kw 285
• Keystone KW 399
• Keystone KW 500
• Keystone KW 600
• keystone KW 750
• keystone KW 850
• MARQUIS TWH200
• MARQUIS TWH200LP
• Prestige ACVMax 110
• Prestige ACVMax 155
• Prestige ACVMax 175
• Prestige ACVMax 250
• Prestige ACVMax 299
• Prestige ACVMax 399
• Prestige ACVMax Excellence PTE 110
• Prestige ACVMax80
• Prestige Trimax110 Solo
• Prestige Trimax175 Solo
• Prestige Trimax250 Solo
• Prestige Trimax399 Solo
• Prestige Trimax60 Solo

• - select code -
• 50F
• E0
• E1
• E10
• E11
• E12
• E13
• E14
• E16
• E17
• E18
• E19
• E2
• E20
• E21
• E22
• E23
• E24
• E28
• E29
• E30
• E4
• E5
• E6
• E7
• E8

Boiler type Challenger Solo CC105s

Error code E4

Cause:

No flame signal

Solution:

Manual gas shut off valve closed
Remove air from gas pipe
Gas supply pressure too low or failing
Gas valve or ignition unit not powered
Incorrect ignition gap
Check adjustment of gas valve