Zoeller float switches are three types - Tether, Vertical and Variable Level. Zoeller sump pump float switch replacement is part of periodic maintenance required every three to seven years depending upon the frequency at which the pump runs. No manufacturers float switch will last forever. Learn how the Zoeller vertical float switch works, why it fails and what Zoeller has done to improve its life span. Learn how to install a Zoeller switch replacement. We compare Zoeller float switch types to help you discover the best float switch type for your water pumping needs.
Since Zoeller is very popular and is the plumbers and contractors preferred brand, we are providing the following information to help you understand more about the Zoeller float switches.
Table Of Contents
Table Of Contents
Zoeller uses three types of switches: the tether, the vertical 2-pole mechanical and the external independant variable level float switch.
The tethered float switch has a tether with a float at the end. As the water rises so does the float. When the float it extended out the switch is triggered to send power to the pump to operate.
If the float should ever fill with water, it will sink to the bottom and not operate.
Many homeowners like to extend the length of the tether as much as possible so more water leaves the basin every pumping cycle; however the longer the tether the larger the pit diameter must be and the more potential there is for float hang-up.
Two types of vertical float switches are used.
The vertical-float-switch is found in the Zoeller Models M53, M55, M57, M59, M63, M95, M98, M137 and M139.
The switch is C shaped. The rod for the float rises as the water causes the float to rise; when the rod hits the top of the C shape it turns the pump on. When the water lowers the float and rod lower and the switch goes off which causes the motor to shut off.
Over time the switch wears. As it wears it causes arching. Arching and switch wear causes the switch to fail. Obviously if the switch fails, the pump-motor will not work.
Zoeller has upgraded its vertical switch to an electro mechanical-switch which has an electronic component which carries a small charge (current) which activates the pump. This reduces wear and tear and thus extends the life of the switch. Unfortunately this upgraded switch is only found on the M63 and the M95 which have a 5 year warranty.
The variable level float switch manufactured by Zoeller is used for non-automatic pumps (the pumps that have no float-switch to start and stop them; they keep running unless the pump cord is pulled). They are easy to install and replace since they are independent of the pump. The variable level float switches are installed by attaching them to the discharge piping system.
Six Characteristics Of The Variable Level Float Switches Manufactured by Zoeller
Three Advantages Of A Variable Level Float Switch
All manufacturers float switches will eventually fail. Float-switch failure depends a lot on how often the sump pump runs. If the pump runs more than once a day and continuously during heavy rainfalls you can expect the switch will last three to five years. If the sump pump rarely runs the switch will last much longer. Some homeowners report their switch has lasted ten years.
The Zoeller pump housing and motor will outlast the switch. The housing and motor are build to last almost forever. In fact, only eightly percent of the motors capacity is used during a pumping cycle which results in motor longevity.
Most of the time the float-switch will fail during heavy continuous pumping; therefore it is wise to replace the switch every three to five years depending upon the frequency of usage ton prevent flooding. The smart homeowner will keep a replacement switch on hand. Replacement of the switch is easy. Follow the replacement steps below.
The Zoeller float switch will fail before the sump pump motor or pump housing; therefore Zoeller makes replacement switches available for Models Mighty-Mate M53, M55, M57, M59 and Model Flow-Mate M98 and Waste-Mate 264 and M267.
The replacement switch part number #004892 is made by Zoeller; therefore it fits perfectly any of the series 50 and 90s sump pumps. The switch is easy to replace. See switch installation instructions below.
The replacement switch part number #04705is made by Zoeller and fits Models Mighty-Mate M53, M55, M57, M59, Flow-Mate M98 amd Waste-Mate M264.
The replacement switch part number #004740 (or 46045) is for Flow-Mate M137 and M139 and sewage pump M267.
The Zoeller float switch is easy to replace. If the pit is dry and the four screws holding the pump head turn, it may be possible to loosen the screws and replace it without removing the pump from the pit.
The following steps define how to replace a failed float-switch.
The replacement gasket part number #034046 is made by Zoeller and fits Models Mighty-Mate M53, M55, M57, M59, Flow-Mate M98 and Waste-Mate M264. We have replaced our M53 gasket once. Our M63 is 12 years old. The gasket is very easy to replace. Just open four screws, remove the old gasket and replace it with the new. The gasket fits perfectly.
The replacement float rod part number #054062 is manufactured by Zoeller.
The replacement float part number #034019 is manufactured by Zoeller. The floats found on the automatic pumps are unsinkable if they are punctured because they are buoyant solid polypropylene. It is highly unlikely that the float will need to be replaced.
Zoeller also makes a replacement guide assembly part number: #034086 for the float.
|Model||HP||GPH @ 10 FT||Pump House||Float Switch Type||Solid Hand-ling||Port Size||A m p||Shut Off||Pit Dia. Req.||Float On Float Off||Power Cord||Price Rang||Model|
|Zoeller 49-0005||1/4||1500||Enginerd Plastic||Tether||3/8 in||1 1/2 in||3.8||18 ft.||12 in||7.25 3.0 in||9 ft.||
|Zoeller M53||1/3||2040||Cast Iron||2-Pole Vertical||1/2 in||1 1/2 in||9.7||19.25 ft||12 in||7 1/4 3 in||9 ft.||
|Zoeller M55||1/3||2040||Bronze||2-Pole Vertical||1/2 in||1 1/4 in||9.7||19.25 ft||12 in||7 1/4 3 in||9 ft.||
|Zoeller N55||1/3||2040||Bronze||Variable Level||1/2 in||1 1/2 in||9.7||19.25 ft||12 in||Adj. Adj.||16 ft.||
|Zoeller M57||1/3||2040||Cast Iron||2-Pole Vertical||1/2 in||1 1/2 in||9.7||19.25 ft||12 in||7 1/4 3 in||9 ft.||
|Zoeller BN57||1/3||2040||Cast Iron||Variable Level||1/2 in||1 1/2 in||9.7||19.25 ft||12 in||Adj. Adj.||16 ft.||
|Zoeller M59||1/3||2040||Cast Iron||2-Pole Vertical||1/2 in||1 1/2 in||9.7||19.25 ft||14 in||7 1/4 3 in||9 ft.||$153 - $212||Zoeller M59|
|Zoeller N59||1/3||2040||Cast Iron||Variable Level||1/2 in||1 1/2 in||10||19.25 ft||11 icn||Adj. Adj.||16 ft.||
|Zoeller M72||1/3||1800||Enginerd Plastic||2-Pole Vertical||3/8 in||1 1/2 in||3.1||18 ft||11 in||7 3/8 3.5/8 in.||9 ft.||
$182 - $202
|Zoeller M76||1/3||2400||Enginerd Plastic||2-Pole Vertical||3/8 in||1 1/2 in||5||25 ft||14 in||
8 1/2 3 3/4 in.
|Zoeller M98||1/2||3660||Cast Iron||2-Pole Vertical||1/2 in||1 1/4 or 1 1/2 in||8.5||23 ft||14 in||
9 1/2 3 in.
|Zoeller M137||1/2||4740||Cast Iron||2-Pole Vertical||5/8 in||1 1/4 in||10.7||26 ft||18 inch||
10 2 3/4 in.
|Zoeller N137||1/2||4740||Cast Iron||Variable Level||5/8 in||1 1/2 in||10.7||26 ft||18 in||Adj. Adj.||15 ft.||
|Zoeller M139||1/2||4740||Bronze||2-Pole Vertical||5/8 in||1 1/2 in||10.7||26 ft||18 in||
10 2 3/4 in.
|Zoeller N139||1/2||4700||Bronze||Variable Level||5/8 in||1 1/4||10.7||26 ft||18 in||Adj. Adj.||15 ft.||
|Zoeller M264||1/4||1500||Cast Iron||2-Pole Vertical||2 in||2 inch||9.4||18 ft||10in||
12 1/2 4 1/2 in.
|Zoeller M267||1/2||3000||Cast Iron||2-Pole Vertical||2 in.||2 inch||10.4||21.5 ft||18 in||12.0 4.0 in.||10 ft.||
The Check Valve Prevents BackFlow When the Float-Switch Returns To OFF Position
Zoeller manufactures check valves. They are highly rated by consumers and are easy to find online.
Zoeller makes many check valve styles ranging from those that slip on both ends of the discharge pipe and those that are glued on. Sizes also vary from 1 1/4 inch to 2 inches.
As for the water thumping sound, Zoeller manufactures both the standard and the quiet check valve. The quiet check valve reduces the thumping sound.
Zoeller check valves are very reasonably priced ranging from $9 to $30.
When sump pump float switches fail, if no battery system exists, the basin may overflow. A high level water alarm alerts the homeowner when such a condition exists.
Zoeller manufacturers two water alert series. They are the A-Pak and the Aquanot Flood Alert.
The Aquanot Flood Alert Series uses three AAA batteries. Stainless steel is used for the sensor contacts. The alarm can be installed as is without adjustments. The alarms are made of solid-state electronic components, have a five foot lead wire, and have an AC power adapter capability (Class 2 transformer, Type B Plug).
The Aquanot Flood Alerts has a 103 decibel horm to alert the homeowner when the sensors are contacted by water and when the alarm batteries are low. There is an on/off silence button to silence the alarm.
The model number is 10-0763.
The A-Pak Alarm System has terminal connectors for a pump and a float-switch. It can be used indoors or outdoors. Its horns is rated at 86 decibles. When there is a high water condition a light will come on. There is a auto reset button to test or reset the alarm. The standard float-switch cord length is fifteen feel with a six foot power cord. It has a 9 V battery backup feature. The model number is 10-0623
The auto dialer uses voice chip technolgoy. It can be used with any device that can provide a normally open/closed contact including telephone (voice tone or pulse not digital), most cell phones, and pages. Four numbers can be stored. Each contact number is dialed up to four times. A sixteen second pre-recorded mesage can be created by the homeowner. An internal 9V battery backup is included. The model number is 10-2616
004892 Replacement Switch
10-1450 AGM Battery
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