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Carver Cascade
All actions that are in red,should only be
carried out by a qualified gas technician.
MK2
| PRIMARY FAULT |
SECONDARY FAULT |
CAUSE |
ACTION |
| Not lighting on gas |
No gas(red light) |
Isolation valve off |
Turn valve on |
| Solenoid defect |
Listen for "clonk"when turned on.No clonk, replace module |
| No spark(green light may be constant) |
Spark generator broken |
Check electrode for obstruction |
| Replace module |
| Control box defect |
Check fuse in box |
| Replace box |
| Amber light |
Voltage too low |
Check or replace battery |
| Buzzing noise |
None |
Module running off charger |
Replace battery |
| No water through hot tap |
None |
Frost damage |
Replace inlet valve See How To. |
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MK2 GE
| PRIMARY FAULT |
SECONDARY FAULT |
CAUSE |
ACTION |
| No hot water |
No 240v(no light on switch) |
Fuse blown |
Replace |
| R.C.D tripped |
Reset |
| None |
Thermostat failure |
Replace |
| Heater element faulty |
Check and replace See How To |
| Trip button out |
Heater on with no water in tank |
Reset |
|
Water Leaks
| PRIMARY FAULT |
SECONDARY FAULT |
CAUSE |
ACTION |
| Water leaks from MK2 |
Leak from front cover |
Fusible plug blown due to over heating |
Replace See how to. |
| Pressure relief valve leak/cracked |
Check pump(Shureflo only) |
| Replace relief valve |
| Turn through 90 degrees |
| See How To split pressure relief valve/inlet valve removal |
| Drain plug washer |
replace washer |
| Internal leak |
Tank damage due to frost |
Replace with tank kit See How To |
| inlet/outlet valve cracked |
See how to on split pressure relief valve/inlet valve removal |
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MK1
See MK2 chart. Parts for the MK1 are hard to come
by, it is often advised to replace the MK1 with the MK2.
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