In this article, we’re going to look into fault finding / troubleshooting the Carver Cascade 2 & Cascade 2 GE water heater.
Below is an excerpt taken from the full Cascade 2 manual which is available to download from our archive.
Troubleshooting on Gas
| Primary Symptom | Secondary Symptom | Cause | Cure |
|---|---|---|---|
| When switching on from cold no indicator lights come on | Heater does not operate | 1: Reversed power supply 2: Power not reaching heater 3: Fuses not in place or blown | 1: Check connection from caravan wiring to wall switch 2: Check wiring from wall switch to caravan supply 3: Check for wiring fault and replace fuse |
| When switching on from cold green light only comes on and stays on | Heater does not operate No fail light. Ignitor not working. Gas valve not working. | Multi-pin plug disconnected at wall switch or heater. | Re-connect multi-pin plug |
| When switching on from cold green & yellow lights come on and stays on | Heater does not operate Battery condition low causing pump to run slowly | Voltage at wall switch below 10.5v | Charge up caravan battery |
| When switching on, green light comes on and after 10 seconds the red as well | 1: When listening to the heater during this sequence a click should be heard followed by intermittent ticking for 10 seconds. 2: Water coming from cowl 3: A click heard but no ticking or ticking but no click | 1a: Air in gas supply pipe 1b: No gas supply 1c: Incorrect gas pressure 1d: Intake of flue obstructed 2: Pump pressure too high 3: Poor connection at multi-pin plug in wall switch or on heater | 1a: Purge pipe by switching off and on again. Repeat if necessary. 1b: Check isolation valves & bottle 1d: Check and clear 3: Pull out and reinsert plugs |
| Yellow light comes on when pump is operated. | Pump runs slowly | Low battery voltage or inadequate pump wiring | Check and charge battery. If not successful check wiring |
| Red light comes on after about 30-45 mins. With water and steam from cowl | 1: No continuous water flow from cowl when pump is running 2: Continuous water flow from cowl when pump is operated | 1: Pressure relief value operating on temperature rise 2: Fusible plug blown indicating thermostat failure | 1: Pump pressure too high 2: Do not continue to use heater. Seek service attention |
Troubleshooting on Mains Electric
| Primary Symptom | Secondary Symptom | Cause | Cure |
|---|---|---|---|
| Mains immersion heater does not operate | 1: Indicator light on isolating switch not alight 2: Indicator light on isolating switch alight | 1a: Caravan not connected to site supply 1b: RCD in caravan tripped 1c: Site supply not adequate 2a: Thermostat 2b: Over temp. Thermostat | 1a: Connect 1b: Reset and try again. If not successful check wiring 1c: Switch off. Seek warden attention 2a: Switch off and seek service attention 2b: Reset button |
Click here to download the entire Carver Cascade 2 manual
If the problem you are experiencing with the heater persists then it is recommended that you seek service attention. Contact your local caravan service centre.