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TROUBLE SHOOTING

PROBLEM:  

Water does not get hot

1. 

Make sure the power supply is on and working.

2. 

If light does not come on, check that the reset button is pushed in; 

 

follow steps from previous section.

3. 

If the indicator light is illuminated, but water temperature does not 

 

get hot at the sink, test for a plumbing crossover as follows; shut 

 

off cold water supply to water heater and open hot water tap. There  

 

should be no water flowing. Any continuous flow indicates a cross  

 

over which will effect the temperature and will need to be corrected.

4. 

If there is no crossover, then replace the heating element 

 

(see previous sections).

PROBLEM:  

Indicator light not on

1. 

If the light does not come on, but water gets hot, check for faulty 

 

bulb.

2. 

Check reset button; follow steps from previous section.

PROBLEM:  

Brown water

1. 

Brown or rusty water indicates a “spent” anode rod. Replace anode 

 

rod.

PROBLEM:  

Odor in water

 

1. 

Smelly water could be due to an unusual reaction between local 

 

water and the heater’s anode rod. Check anode rod.

PROBLEM:  

Water is too hot

1. 

Turn the temperature knob counter clockwise to a lower 

 

temperature setting. If temperature does not lower within 60 

 

minutes, then replace thermostat.

PROBLEM:  

Water is not hot enough

1. 

Under Instructions for Use, see “Setting the thermostat”.

PROBLEM:  

Water is leaking

1. 

Turn off power switch and unplug water heater from 110 VAC 

 

outlet.

2. 

Check water fittings and T&P fitting in the top of the tank.

3. 

Remove cover and inspect heating element gasket.

Page 15

Summary of Contents for MiniTank WM-2.5

Page 1: ...Electric Mini Tank Water Heaters WM 2 5 WM 4 0 Installation and Operating Instruction Manual http waterheatertimer org How to install under counter water heater html...

Page 2: ...ical Description 6 Installation Instructions 6 10 Plumbing Connections 7 Temperature Pressure Relief Valve 7 8 Filling The Water Heater 9 Electrical Connections 10 Instructions For Use 11 Maintenance...

Page 3: ...qualified electrician to have one properly installed 6 As with any appliance close supervision is necessary when used by children 7 Do not operate this water heater if it has a damaged cord or plug if...

Page 4: ...ltage Vac 110 120 110 120 Power at 120 Vac Watts 1440 1440 Max Water Pressure psi 150 150 Weight empty lbs 20 24 Amperage Amps 12 12 Temperature and Pressure Relief Valve Water inlet Water outlet wate...

Page 5: ...2 19 1 4 B inch 11 3 4 11 3 4 C inch 10 3 8 10 3 8 Dimensions Switch Heating element 1 1 Switch Thermostat Indicate Light Heating Element Power Plug Switch Overheat Limiter Wire Support Schematic Con...

Page 6: ...mply with the Installation Instructions before connecting to electrical outlet CAUTION The thermostat has been pre set at the factory between 41 C 105 F and 45 C 113 F CAUTION Hydrogen gas can be prod...

Page 7: ...ed by an unqualified installer CHOOSE A LOCATION that allows ease of access for maintenance or servicing ideally installed at least 8 to 9 from the ceiling inside top of cabinet or any adjacent walls...

Page 8: ...Y TO INLET OR OUTLET CONNECTIONS TEMPERATURE AND PRESSURE RELIEF VALVE CAUTION Install the Temperature Pressure Relief Valve supplied with the water heater Install a discharge pipe from the temperatur...

Page 9: ...h will create a closed water system During the heating cycle of the water heater the heated water expands causing pressure inside the water heater to increase The T P relief valve may discharge hot wa...

Page 10: ...leaks To be sure that all air is out of the water system open the hot water faucets on your fixtures until constant water flows from them Otherwise any air remaining in the tank will cause the water h...

Page 11: ...into the master panel The WaiWela WM water heater was manufactured and wired in accordance with UL require ments The water heater is equipped with an overheat limiting device with a manual reset Also...

Page 12: ...luminated The temperature adjusting knob will increase the temperature by turning the knob clockwise and decrease the water temperature by turning the knob counter clockwise When not being used for a...

Page 13: ...es before draining first turn off the POWER switch and then unplug power cord DRAINING AND REMOVING THE WATER HEATER 1 Unplug the water heater 2 Open a hot water faucet to let hot water run out Allow...

Page 14: ...er see prior instructions 2 Remove heating element noting original positions of all connections 3 Install new element with gasket making sure the new element and gasket are positioned correctly 4 Tigh...

Page 15: ...e the heater WARNING Do not tamper with the reset button to over ride overheating shut down 1 Turn off the power switch and unplug the water heater from the electric outlet 2 Drain and remove the wate...

Page 16: ...ght not on 1 If the light does not come on but water gets hot check for faulty bulb 2 Check reset button follow steps from previous section PROBLEM Brown water 1 Brown or rusty water indicates a spent...

Page 17: ...d Circle 1 19 Front Cover 1 Schematic Disassembly WM 2 5 WM 4 0 Parts List WM 2 5 WM 4 0 Page 16 22 9 2 1 7 5 16 33 29 30 12 13 15 34 35 36 23 6 27 14 18 11 32 31 25 37 38 26 20 24 10 8 28 3 21 17 19...

Page 18: ...material or workmanship within two 2 years from date of original installation in a single family residential application used with potable water deemed not to be hard water or within one 1 year if use...

Page 19: ...turer f The water heater is installed by non qualified personnel 5 The OWNER and not the Manufacturer or his agent representative shall be liable for and shall pay for all field charges for labor or o...

Page 20: ...service request is made be sure to include Proof of Purchase the water heater model number and the date of manufacture date of installation Dealer s name and the watts and voltage 4 When returning th...

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