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Can anyone help with what is done, when a heater is serviced? My son has an Ederspächer Hydronic D4 we have the installation guide and we have bought the service kit. If it breaks down then there is enough info to repair it. But with a service if we do too much we could I expect introduce faults.
I will guess we need to remove the whole heater and strip to some extent to clean it. But to what extent?
I will guess we need to remove the whole heater and strip to some extent to clean it. But to what extent?