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I need a oner manual for a Master Bilt BLG- 74 that i bought used' I don;t know how any controls work, defrost timer etc. Thanks Ralph

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This was very difficult to find, but I found it just for you! Please make sure you rate my answer 4 thumbs up! Thanks so much for understanding, it would be a huge help to me. I would be forever grateful if you could do this for me. To view the manual you will need adobe reader, which you can get for free from You probably already have it though, please try opening the file first and find out. If you require some other manual, the file doesn't work, or this isn't what you are looking for PLEASE reply to my answer here and I will correct it for you. Here is the manual / guide please give it a few minutes the file is quite large:


Posted on Oct 16, 2010


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Posted on Jan 02, 2017


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Need a manual for paragon timer EC 74/120D

Try Googling (paragon)(EC 74/120D)(manual) without parens.

Nov 11, 2013 | Paragon 4001-00 24-hr Timer Control 120v...

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The white wire has come off of the timer. There are two possible spots open on the timer. Which one do I use?

1) Copy following links to help identify timer:

2) Add a comment and at least give us a hint about your timer.

Is this a box timer, or in-wall timer, sprinkler timer, spa timer, pool timer, low voltage power pack, plug-in timer, delay timer, cycle timer, digital timer, analog timer... etc.
Describe timer in detail.
What voltage are you using? 120, 208, 230, 240, 277, 480, 600 etc.
What does timer control?
Is this for a nuclear power plant, or kitchen light bulb, or 3-phase motor, refrigerator defrost, freezer defrost, swimming pool heater, etc.

Feb 19, 2013 | Hardware & Accessories

1 Answer

Ice build up on drain line

The drain in the freezer behind back lower panel
needs opening. You can see it at the bottom of the back panel
underneath the evaporator coils. (The cold coils)
Run Hot water in the drain until it clears or use a hairdryer.
When the defrost melts the water it goes down the drain
If the drain is clogged with Ice or ? The defrost water
overflows into the ref. or freezer or on floor
Run Hot water in the drain until it clears or use a hairdryer.
Also check fan undernearh Ref in the rear
Clean condenser coils underneath
.I'm including my article on Refrigerator Repair for your help and convenience.;
Please click or copy and paste into browser for Article
If you need more help GO HERE:

Thanks for using fixya
Leo Ponder

Sep 26, 2011 | Master Bilt BLG-52 Refrigerator Commercial

1 Answer

The readout display is not lit. There is power going into unit but the unit is not working. I have no manual to help me understand what is going on.

The stat. is inside the cooler up on the evap enclosure, there is not much to them there is a defrost timer down in the bottom, you should have a evap. fan running even if the compressor is not, unless the timer in in a defrost which I doubt. Find the timer and turn it and the compressor just may start, if it does its should have started before you had time to write your question. Normal defrost verys but not much over 20 min. usually less.

Jul 02, 2011 | Master Bilt MBP-CCR23SF Single Reach In...

1 Answer


The evaporator coil behind the cover on the back wall inside the freezer will ice up under normal conditions. Every 8 to 10 hours for around 20 minutes the defrost timer (or in most newer models the electronic adaptive defrost control) will turn the defrost heater on to melt the built up ice. There is a defrost thermostat which prevents the heater from overheating the freezer by breaking the heater circuit when the temp reaches close to 32 degrees F. The entire cooling system shuts off during the defrost cycle and starts back when the timer advances through the cycle.

If this ice is not melted it will continue to build up until the air can't flow over the coil to circulate the cold air through the freezer and into the fridge. The temperature change in the fridge is usually noticed first followed by the freezer.

If the defrost thermostat is bad, it can prevent the heater from coming on OR it won't turn the heater off when it gets too warm. It is clamped to the evaporator coil at the top to sense the temp. If it appears to be misshapen it is bad.
With an ohm meter it should show continuity when cold and none when warm.
You can also bypass(disconnect the two wires plugged into it and twist them together) the thermostat to see if the heater comes on then. If it does then you know the thermostat is bad and needs replaced.

The defrost heater is located on the evaporator. It is in a tube which is at the bottom and can also go up the sides of the evaporator. On some types you can see a burnt spot if it's bad. With an ohm meter it should show continuity from end to end when disconnected from the wiring in the freezer. You can also test the wiring for voltage when it's in the defrost mode.

If you have a defrost timer you can test it. It can be located under the fridge behind the kick panel on the front. Some are in the fridge with the controls at the top. You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer because that means the timer is not running. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.

If you have an adaptive defrost control instead of a timer, replace it if the heater and thermostat test good. It is located in the fridge with the controls in some models and on the back in others.
You can post your model number into one of several appliance parts sites on the internet and search for defrost components to find your parts.

May 12, 2011 | Master Bilt Freezers

2 Answers

Coil in freezer icing up and auto defrost not working.the heat strip at bottom of coil is not going on and ice build up on coil cuts cold air supply to refigerated side of there a sensor...

Your fridge is probably suffering from a defrost circuit failure. One (or possibly more) of the following components has failed: 1) the defrost terminator or sensor, 2) the defrost heating element or 3) the defrost controller / timer. Items 1 & 2 should be found in the freezer compartment - behind the back wall. The 3rd item can often be found in the toe space at the bottom of the fridge - behind a kick plate or some other relatively accessible location.

The operation is as follows: The defrost timer runs constantly and about every 8 hours or so, it switches the power from the compressor and its associated controls (fresh food compartment t-stat, etc.) to the defrost circuit that consists of a heating element and a device called a defrost terminator. Power is applied for about 15 to 20 minutes during which time the defrost heater is energized IF the defrost terminator detects the evaporator coil compartment temperature is cold. When the defrost terminator detects that the heater has warmed the evaporator coil compartment to a temperature of about 50 degrees OR the timer has powered the defrost circuit for 15 to 20 minutes, the defrost circuit / heater de-enrgizes. Even if the heater is hasn't reached 50 degrees in the 15 -20 minutes, the timer switches from the defrost circuit back to the compressor through its controls once again. You'll need to determine if 1) the timer is timing, 2) the timer switch can actually send power to the defrost circuit, 3) the defrost terminator can close when cold - or if it is stuck open, or 4) the heater works.

If you don't know how to work with electrical meters and tools or are not comfortable working in tight spaces (back wall of the freezer) with live electric parts, you should call a repair person. Also, refrigerants are very dangerous. If allowed to escape from the tubing, coils, etc. there is a very real danger of instant frostbite if it comes in contact with your skin. You can be blinded if it contacts your eyes. These above reasons make me believe that this is a pretty complicated DIY type job and really isn't a good one for a beginner to attempt. On the plus side, parts are relatively inexpensive, and a qualified person should be able to quickly diagnose the problem. Labor rates and standard parts markup can bring this repair up into $200 and up range, however.

If / when you do call for service, having the freezer emptied & defrosted already - will save the cost of defrosting time by the repair person.

I hope this was helpful and good luck. Please rate my reply. Thank you.

Apr 08, 2011 | Amana ARS266ZB Side by Side Refrigerator

1 Answer

The coils freezes up frequently. Most recently,

If your defrost timer is not working then you will have problems with freezing the coils. When it is humid out and you are in and out of the unit the problem will be worse. To eliminate this problem you will need to get and install the timer. Do a search for "appliance parts" and checkout a number of the suppliers as the prices can vary a lot. All you need to find your part is the model # and sometimes serial# of your unit.

Nov 19, 2009 | Master Bilt Master-Bilt MPM-72 7.9 Cu. Ft....

2 Answers

Our refrigerator just started not freezing in the freezer and not getting cold enough in the refrigerator box. we checked the temperature controls and adjusted them, etc. still no cooler.we can hear it...

Based on your description, it sounds like you have a defrost system malfunction. The links below, courtesy of, will assist you in diagnosing, repairing your refrigerator. First you need to know how a refrigerator works.
You will need your model number to access your units exact system parts.

Generic description used:

How a refrigerator works: Click this link then click on Automatic Defrost link

Then click on these links below:

1. Defrost Timer

2. Defrost Thermostat

3. Defrost Heater

4. Defrost Control Board...Electronic Controlled system only
(Replaces Defrost Timer)

Aug 21, 2009 | Whirlpool GC5SHEXN Side by Side...

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We are not sure what electrical outlet is needed for the master bilt model blg-27hd

Hello I can help you. First of all here is a link to the owner manual in case you don't have one. In the manual you will see answers to all of your questions:

Your model requires a dedicated 120 volt outlet with a 20 amp circuit breaker In other words, a regular outlet but not one that has lots of other appliances using that same circuit because, this refrigerator alone draws almost 15 amps of power.

Aug 07, 2009 | Master Bilt BLG-27HD Refrigerator...

1 Answer

Wont turn on

Does the unit have a defrost timer??It may be stuck.Let me know,Mike

Nov 21, 2007 | Master Bilt 18.1 cu. ft. Commercial...

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