Applicable Systems
Greenstar GB162
Symptoms
The boiler reports a heating circuit short cycle. The heating circuit is cycling too frequently.
Possible Causes
- Flow rate insufficient through the heat exchanger
- Temperature differential set too small
- System balancing issue causing rapid temperature swings
Troubleshooting Steps
- Step 1: Verify the system flow rate
Flow is adequate for the boiler capacity - Step 2: Check the temperature differential setting
Differential is set correctly - Step 3: Balance the heating system if needed
System temperatures are balanced
How to Reset
To reset: Adjust the system to prevent short cycling, then clear the alarm.
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Source: Worcester Bosch Boiler Manual, Worcester Bosch Group
Category: Home Boiler
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