Univex 318258-000 ユーザーズマニュアル

15

Remove the access cover(s), then remove the foam 

4. 

insulation block. 

Remove the protective plastic cover(s) over the 

5. 

elements from their attachment point.  
Disconnect the electrical wires from the heating 

6. 

element(s) by loosening the screws (Figure 12). 

Remove the screw-in element(s) by turning the 

element(s) counterclockwise with a 1-1/2 inch socket 

wrench. Remove the existing gasket(s).

Clean the area where the gasket(s) fits to the tank 

7. 

and internal threads. If you are replacing the bottom 

element, remove any accumulated sediment on the 

bottom of the tank.
Make sure the replacement element(s) has the correct  

8. 

voltage and wattage rating by matching it to the rating 

plate on the water heater. Position the new gasket(s)  

on the element and insert it into the water heater   tank 

(Figure 13). 
NOTE:

 Apply a light coat of hand dishwashing soap 

and water to the gasket. Tighten the element by turning 

it clockwise until secure.
Close the drain valve and open the nearest hot water  

9. 

faucet. 

Then open the cold water shut off valve

 and 

allow the tank to fill completely with water.  To purge 

the lines of any excess air and sediment, keep the hot 

water faucet open for 3 minutes after a constant flow of 

water is obtained.

Check for leaks around the element(s).

10. 

Reconnect the electrical wires to the element and 

11. 

securely tighten the screws (See Figure 12).
Replace the 

12. 

protective plastic cover(s) removed earlier. 

Make sure the cover(s) are securely engaged on the 

attachment point(s).
Replace the foam block(s) and access cover(s).

13. 

Although this water heater is equipped with “Dry Fire” 

14. 

protection circuitry, be sure tank is completely filled with 

water before applying electrical power to the water heater.

Reconnect electrical power to the water heater at the 

15. 

circuit breaker/fuse box.

Press the power button to turn the water heater on. Set 

16. 

the desired water temperature and operating mode. 
NOTE:

 The water heater will conduct a system 

diagnostic (approximately 8 minutes) prior to operation. 

Screws

Wires

Element

Figure 12:

Screw-in
Element

Figure 13:

Gasket

Spud

At least monthly, a visual inspection should be made of the 

following:

Air Filter (Remove and inspect, clean if needed, and 

• 

reinstall).
Condensate drain pan and condensate lines.

• 

The lower metal drain pan for standing water which may 

• 

indicate a clogged condensate drain pan, condensate 

lines, or plumbing leak.
Leaking or damaged water piping.

• 

Presence of corrosive materials in the installation area.

• 

Presence of combustible materials near the water heater.

• 

After servicing this water heater, check to make sure it 

• 

is working properly. (See “Operating Your Water Heater” 

section of this manual.)

 If you lack the necessary skills required to 

properly perform this visual inspection, you should not 

proceed, but get help from a qualified person.

 Before attempting to clean or replace the air 

fi lter press the power button to place the water heater in 
Standby Mode and turn-off power to the water heater at the 
circuit breaker/fuse box.

Locate the screw securing the filter panel to the heat 

1. 

pump shroud and loosening it.
Remove (slide) the filter from the unit.

2. 

If you are replacing the filter skip to step 4. To clean the 

3. 

filter use a vacuum with a hose attachment to remove 

any dust or debris.
Place the new or cleaned filter into the water heater 

4. 

and secure the filter to the shroud with the screw 

loosened earlier. 
NOTE:

 The guides/slots when inserting the filter into 

the water heater. 
Restore power to the water heater and press the 

5. 

power button to turn the water heater on. NOTE: the 

water heater will conduct a system diagnostic prior to 

operation. 

 Before attempting to clean or replace the 

condensate drain pan or lines press the power button to 
place the water heater in Standby Mode and shut-off power 
to the water heater at the circuit breaker/fuse box.

Remove the access panel (fan side) by loosening the 

1. 

screws securing it to the unit. 
Check the condensate drain pan and drain lines for any 

2. 

dirt or debris that might interfere with proper drainage. 

Wipe out any dirt or debris with a damp cloth.
Once the condensate drain pan and lines have been 

3. 

inspected/cleaned, secure the access panel to the water 

heater.
Restore power to the water heater and press the power 

4. 

button to turn the water heater on. 
NOTE:

 The water heater will conduct a system diagnostic 

prior to operation.