Warning, Anode removal and replacement, Thermostat removal and replacement – John Wood SpaceSaver (2.5 Gallon) User Manual

Page 13: High limit switch removal and replacement, Service

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13

Anode Removal and
Replacement

1. Using a 7mm wrench, remove the nut securing the

anode.

2. Unscrew and remove anode.
3. Screw in the new anode and secure with the retaining

nut.

4. Follow instructions for replacing the element in “Heating

Element Cleaning/Replacement.”

Thermostat Removal and
Replacement

Removal
1. Disconnect the electrical power.
2. Remove the front panel, see the “Removing the Front

Panel” section in this manual. Remove the insulation
pad.

3. Using a 7mm wrench, remove the two nuts securing

the temperature sensor.

4. Remove the 3 wires (white, brown, and green/yellow)

from the thermostat at the spade connections, carefully
taking note of the original location of each wire.

5. Unscrew the 2 screws securing the thermostat to the

front panel and remove thermostat.

Replacement
1. Place the new thermostat against the front panel and

secure it with the two screws.

2. Reattach the wires at the spade connections, taking

care to place them in their original locations. Be sure
to push the connector completely onto the spade
terminals.

3. Secure the temperature sensor to the tank by

tightening the nuts. Be sure the sensor is firmly in
contact with the tank surface.

4. Replace the insulation block and the front panel.
5. Reconnect the electrical power.

High Limit Switch Removal
and Replacement

1. Disconnect the electrical power.
2. Remove the front panel, see the “Removing the Front

Panel” section in this manual. Remove the insulation
pad.

3. Remove the four wires connected to the switch, taking

care to note the original placement of each wire.

4. Using a 7mm wrench, loosen and remove the nuts

securing the high limit switch to the tank.

5. Remove the old switch and position the new switch in

place on the tank.

6. Replace and tighten the nuts so the high limit switch is

firmly in contact with the tank surface.

7. Replace the four wires, taking care that they are

replaced into their original positions.

8. Replace the insulation block and the front panel.
9. Reconnect the electrical power.

Service

If a condition persists or you are uncertain about the
operation of the water heater contact a service agency.
Use this guide to check a “Leaking” water heater. Many
suspected “Leakers” are not leaking tanks. Often the
source of the water can be found and corrected.
If you are not thoroughly familiar with your water heater and
safety practices, contact a qualified installer to check the
water heater.

Figure 13
Thermostat

Wiring

YELLOW/

GREEN

WIRE

TEMPERATURE SENSOR

WHITE

WIRE

BROWN

WIRE

GREEN WIRE

THERMOSTAT

Failure to do so can result in
death or electrical shock.

Replace all parts and panels
before operating.

Disconnect power before
servicing.

Electric Shock Hazard

WARNING

Figure 14
High Limit Switch

Wiring

BLACK

WIRE

WHITE

WIRE

BROWN

WIRE

BLUE

WIRE

TERMINAL

1

RED RESET

BUTTON

TERMINAL

3

TERMINAL

4

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