I have just replaced the flowswitch on my heatslave 15/19 with the newer horizontal mounted type, the old one was the vertical mounted type slight modification of pipework required for those that are familiar with the older heatslaves. Problem is that when the cold tap on the sink is switched on you here the relay activating and burner lighting as if dhw is demanded.I assume this is because there is a mains pressure drop. What can I do about this? And before anyone asks the switch is the right way round and the arrow follows the direction of flow.
worcester heatslave flow switch problem
- Thread starter am609
- Start date
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I will have to assume that this is the DHW flow demand switch.
Your problem particularly occurs when there is air in the DHW pipes. Perhaps this will clear in a few days if it originated from your work draining the pipes.
If not then a non return valve in the DHW outlet pipe after the boiler will probably solve the problem.
Tony
Your problem particularly occurs when there is air in the DHW pipes. Perhaps this will clear in a few days if it originated from your work draining the pipes.
If not then a non return valve in the DHW outlet pipe after the boiler will probably solve the problem.
Tony
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