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1. Remove the relay of the fan of a heater and check its working capacity.
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2. Additional wires submit tension from the storage battery to contacts of 1 and 3 relays of the fan of a heater. |
3. Check that contacts of 4 and 5 relays of the fan of a heater become isolated when giving tension and are disconnected at tension shutdown.
4. Otherwise, replace the relay of the fan of a heater.
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