TTW SERVICE PROCEDURE V

Blower Temperature Switch Testing

and Replacement

Blower Temperature Switch Replacement.

WARNING

115 volt potential exposure. Use caution

to avoid personal injury.

Step 1. Position gas control power switch to the “OFF” position and unplug heater from wall outlet.

Step 2. Remove the three screws (Phillips screw driver) from the control access cover on blower and remove cover.

(see photo 16)

Step 3. Locate blower temperature switch (see photo 17)

Step 4. Disconnect red and yellow wire leads from switch.

Step 5. With an appropriate tool such as side cutters, snip the retaining lug from the blower housing to allow removal of temperature switch (see photo 18).

Step 6. Remove switch from blower housing.

17

16

Blower temperature

switch location

Step 7. Install new switch. Be sure switch is properly seated in mounting area.

Step 8. Reconnect red and yellows wires to new switch. Wires are interchangeable with either terminal.

Step 9. Position gas control power switch to the “ON” position and verify proper heater operation.

Step 10. Replace control access cover from step 2.

18

Snip retaining lug

 

 

from blower housing

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23

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Bradford-White Corp M2TW65T*F, M4TW60T*F, M2TW50T*F, M4TW50T*F, M1TW40S*F, M1TW50S*F Blower Temperature Switch Replacement
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M4TW40T*F, M1TW50S*F, M2TW50T*F, M4TW50T*F, M4TW60T*F specifications

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