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Model 1042LH Humidifier Installation Manual

Troubleshooting

1.

My humidifier continues to run.
Check for the following:

The valve might be stuck in the "open" position.

Check for wiring errors.

Is the unit sized properly for your home?  If it is rated for a smaller-sized home than the home in which it is

installed, it will work "overtime" to reach the humidification levels desired.

Check the Vapor Pad

®

. If it is clogged, the pad will reduce the humidifier efficiency. Replace if necessary.

2.

My solenoid valve is making a "chatter" noise.
This can be caused by any of the following:

The power to the valve is less than 18V AC.

The solenoid is causing a "water hammer condition" thru the water pipes (valve closes quickly and shuts off

water flow, which in turn creates pressure behind the valve that has no avenue of relief).  You may want to install

a water hammering device with your plumbing, or contact your local plumber to determine the best solution.

The humidistat is located too close to the humidifier or the by-pass pipe. Your humidistat should be a min. of

1.5' away or greater.

The humidistat could have a buildup of dust, causing a faulty reading. Clean.

The solenoid valve might be dirty.  Remove, inspect and clean if necessary.

Water supply pressure going to the valve may be too low.

The hold down nut on top of the solenoid, as it may be loose.

3.

The humidifier is not raising the humidity levels in my home.
Check for the following:

Ensure you have changed / replaced your Vapor Pad

®

 at the proper intervals (once per year) to ensure the

greatest production of moisture.

Check the setting of your humidistat to ensure it is set higher than current humidity levels in your home (when

 

in

doubt, turn it all the way to the right at maximum production).  If you don't know what your current humidity
level is, use an instrument called a 

thermo-hygrometer

 (Model 

GF-

610

)

 to measure both heat and

 

humidity

levels in your home.

Calculate your humidity load (Gallons Per Day - GPD) via our humidity calculator (www.

GeneralAireIAQ.ca

).

Check to see that your humidifier model is designed to produce the amount of moisture (GPD) you

 

need.

Have you recently installed hardwood floors? Have you recently remodeled and added on to your home? These

can both increase your home's demand for humidity. Options include connecting your humidifier to the hot
water supply (which can increase output by as much as 30%), or installing a new humidifier model that can
generate more humidity.

The unit is not recommended for heat pumps.

Plenum temperatures must meet or exceed 120° F to achieve listed capacities.

4.

My humidifier will not turn on.
The following might be occurring:

Check to see if your humidifier is plugged in, that the breaker is engaged, and that power to other items from

the same source is working.

Check that the damper knob is in the "OPEN" position.

Ensure a fuse has not blown.

Check that connectors are properly inserted in the terminal block.

Make sure the furnace is operating in the heat mode.

To ensure your safety and the longevity of your unit, we recommend
contacting a licensed contractor to perform any repairs or maintenance.

!

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®

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Canada

 

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Summary of Contents for GF-1042DMM

Page 1: ...or residential installation only Commercial installation voids warranty Modification or alteration of product parts installation instructions or local safety codes voids warranty Read our full warrant...

Page 2: ...INSTRUCTIONS Failure to heed them can result in serious injury or death CAUTION This symbol indicates IMPORTANT INSTRUCTIONS Failure to heed them can result in serious injury or material property dama...

Page 3: ...relay Model GF GA50 Specifications Model GF 1042DMM Legacy Flow Through Humidifier Type Flow Through GPD 17 Based on 120 F 49 C Plenum Temperature Warranty Years 5 Replacement Vapor Pad GF 990 13 Repl...

Page 4: ...r trough 3 Install connecting collar Connect by pass pipe to collar and humidifier cabinet Using holes at top and bottom of humidifier bypass opening screw by pass pipe to humidifier cabinet Top Of Te...

Page 5: ...ing and close saddle valve 8 Turn handle counterclockwise to open saddle valve leave open for several seconds to flush dirt from pipe and tubing Steel Brass or Hard Plastic Pipe 1 Shut off water suppl...

Page 6: ...ase to seal off air entering through the vents Low voltage wire may enter the humidistat under the foam seal 5 Connect wires to screw terminals on the control assembly as shown in wiring diagram Repla...

Page 7: ...oid provides low voltage control of the humidifier The humidistat is designed for wall mounting in the living area or surface mounting on the return air duct Water flows through a strainer is metered...

Page 8: ...brass strainer body from the solenoid valve Carefully pull the strainer screen GF 990 17 from the orifice fitting Clean the mineral deposits from all parts If the orifice is clogged it may be opened...

Page 9: ...the greatest production of moisture Check the setting of your humidistat to ensure it is set higher than current humidity levels in your home when in doubt turn it all the way to the right at maximum...

Page 10: ...d the pad becomes ineffective This reduces the output of the humidifier and increases water consumption Replace the Vapor Pad annually 5 Why would I want to install a humidifier For many reasons 1 Sin...

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