User Guide
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PROBLEM
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POSSIBLE!CAUSE
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SOLUTION
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Water!heater!is!not!heating!at!all!(water!is!flowing!
but! the! unit! is! not! heating! at! all! —the! outgoing!
water! temperature! is! the! same! as! my! cold! water!
supply)!-!the!digital!display!does!NOT!light!up.!
No!power!or!incorrect!wiring.!
Make!sure!the! b reakers!at!main !electrical!pa nel!are!ON.!You !
may!have!a!faulty!breaker!or!unit!may!be!wired!incorrect.!
Flow!rate!is!too!low!/!water!pressure!is!too!
low.!
Your!water!heater!has!an!activation!flow!rate!of!
approximately!0.3!GPM.!If!your!water!f l ow! r at e ! i s ! less!than!
this!level,!your!unit!will!not!activate.!Increase!the!flow!rate.!
Water!heater!is!not!heating!at!all!(water!is!flowing!
but! the! unit! is! not! heating! at! all! -! the! outgoing! water!
temperature!is!the!same!as!my!cold!wa ter!supply)!
The!digital!display!DOES!light!up.!
Internal!part!failure.!
Please!call!us!for!technical!assistance.!
Water!heater!is!heating!but!the!water!
temperature!is!not!hot!enough.!
User!temperature!setting!too!low.!
Turn!up!the!temperature!setting!on!the!unit.!
Flow!rate!is!too!high.!
Depending!on!your!incoming!water!temperature!and!the!
power!output!of!your!model,!your!water!flow!rate!may!
exceed!the!physical!heating!capacity !o f! you r! water !heater.!
Reduce!the!flow!rate!by!installing!an!Eemax!Flow!Restrictor.!
Use!the!chart!in!section!6!to!find!out!which!flow!restrictor!
works!best!for!your!particular!model.!!
Crossed!wires.!
If!it’s!a!new!installation,!have!your!electrician!double!check!
the!wiring.!Is!possible!that!the!wiring!is!incorrect.!
Voltage!less!than!240!volts.!
The!heating!elements!on!your!water!heater!are!design!for!
240! volts.! When! use! with! a! lower! voltage,! they! produce! less!
heating!power.!You!may!need!to!upgrade!to!a!larger!model.!!
Mixing!too!much!cold!water.!
You!do!not!need!to!mix!as!much!cold!water!with!your!
tankless!water!heater!compared!to!wh en!you!use !a!
conventional!water!heater.!You!may!also!have!an!anti-scald!
feature!on!your!faucet!that!is!mixing!cold!water.!These!
types!of!faucets!can!usually!be!adjusted!to!reduce!the!
amount!of!cold!water!mixed.!!
The!water!temperature!at!my!faucet!is!less!than!the!
temperature!setting!of!my!water!heate r.!
Voltage!less!than!240!volts.!
The!computer!chips!in!your!tankless!water!heater!are!
programmed!with!the!expectation!that!your!incoming!line!
voltage!is!240!volts.!If!you!have!less!than!240!volts,!it!may!
affect!the!reading!on!your!water!heater’s!digital!display!and!
cause!it!to!read!slightly!higher!than!the!actual!output!
temperature.!To!compensate!for!this,!increase!the!setting!
on!your!water!heater!if!you!need!/!want!hotter!water.!
Anti-Scald!pressure/balancing!valve!or!
tempering!valve.!
Your! faucet! may! have! an! anti-scald! feature! or! a! tempering!
valve! that! automatically! mixes! cold! water! even! when! you!
turn!your!control!lever!or!handle!to!full!hot.!Thes e!devices!
are! usually! adjustable! so! you! can! turn! off! the! cold! mix!
completely.! You! can! compensate! for! this! by! increasing! the!
setting!on!your!water!heater!if!you!need/want!hotter!water.!
Thermal!loss!due!to!long!pipe!run!
As!the!hot!water!from!the!heater!runs!through!the!hot!
water!delivery!sys tem!to!yo u!faucet ,!some!h eat!wil l!be!lo st!
especially!if!it!has!long!distance!to!travel!or!the!pipes!are!
cold.!This!is!normal.!You!can!compensate!for!this!by!
increasing!the!setting!on!you r!water!if!you!need/ want!
hotter!water.!










