Troubleshooting Table - 'No Hot Water - Lochinvar CH 100 G CE Installation, Commissioning, User & Maintenance Instructions

Feature Cause
Power Anode
• Indicator lamp is • Anodes not making
red contact with the
water
• Break in one of the
cables
• Anode poorly
earthed
• Indicator lamp is off No electrical supply to
the potentiostat

11.3 Troubleshooting table - 'no hot water'

Warning
Maintenance may only be performed by a qualified service and maintenance engineer.
No hot water
Feature Cause
No ignition (pilot No supply voltage
flame LIT) present
Pilot flame OUT Pilot flame blown out
No gas
The safety thermostat
has cut out without
apparent reason.
Measure
4. Check to see that all connections have been made properly
5. Check that the Power Anode is properly connected; see
Electrical Diagram (14 "Electrical diagram").
6. Check to see that all connections have been made properly
7. Check all cables for breaks and replace if any are found.
Check the electrical supply
Measure
1. Check whether the isolator is ON.
2. Check whether there is power to the isolator
The measured voltage must be 230 V
AC
1. Start the appliance up (9 "Starting the water heater")
1. Check that the gas valve is open
2. Check whether the gas control is opening (clicking of the gas
control)
3. Check the leads of the gas control
1. The safety thermostat has cut out correctly:
- Check whether the control thermostat is working
- Check whether the high-limit thermostat is working
- Check that the circulation pump (if present) is working
2. The safety thermostat has cut out without apparent reason:
- Check whether the thermostat is defective
- Check whether the sensor of the thermostat is defective
Comment
If the error cannot be rectified, contact your installation engineer
Comment
If ignition is not improved, consult your installation engineer.
(-15%, +10%)
If the error cannot be resolved or is persistent, contact your
installation engineer