Bradford-White Corp TG-237E-N(X)A Manual Do Utilizador
39
Frost Protection:
This unit has frost protection heaters mounted at different points to protect the water the water heater
from freezing. The heaters located on the hot water outlet line should have a resistance reading of 180-
207 ohms through each of these heaters. The heater located on the heat exchanger piping should have
a resistance reading of 156-180 ohms, and the one located in the water flow sensor valve should have a
resistance reading of 24-28 ohms.
Amp Fuses:
This unit has two inline three-amp glass fuses. Remove the fuse and check continuity through it. If you
have continuity through the fuse, it is good. Otherwise, the fuse is blown and must be replaced.
This unit has frost protection heaters mounted at different points to protect the water the water heater
from freezing. The heaters located on the hot water outlet line should have a resistance reading of 180-
207 ohms through each of these heaters. The heater located on the heat exchanger piping should have
a resistance reading of 156-180 ohms, and the one located in the water flow sensor valve should have a
resistance reading of 24-28 ohms.
Amp Fuses:
This unit has two inline three-amp glass fuses. Remove the fuse and check continuity through it. If you
have continuity through the fuse, it is good. Otherwise, the fuse is blown and must be replaced.