TROUBLESHOOTING GUIDE
Your Instant-Flow Micro water heater has no internal user serviceable parts and should be returned to the factory for repair or
replacement. Please contact factory for return authorization. If after following the Installation Instructions, your Instant-Flow
MICRO does not heat water in accordance with this literature, please check the following:
1.
Low Power
– Verify your voltage by using a voltage meter. You should obtain your reading off the two outside terminals
located on the heater. Compare the reading against the voltage specified in the Installation Instructions. The center
terminal is always the earth ground. The hot and neutral legs, in the case of 110 V heaters, are attached on the two
outside terminals.
2.
Low Voltage
– The percentage of reduction in voltage will result in a like reduction in temperature increase.
3.
Check Low Amperage Draw
– Check amperage draw using an Amperage Probe. Please compare your results with
the Installation Instructions (Table 1) to determine if the heater is operating correctly.
4.
Length of Pipe
- Length of pipe run will affect the temperature increase. The heater should be mounted no more than
12-18 inches [ 305mm-457mm] from the point of use.
5.
Check shut off valve.
Check shut-off valve and make sure valve is open 100% to allow full water pressure and flow to
the heater.
6.
High-Limit Thermostat -
Shut off power on breaker. Remove cover. Push in reset button on module. Refer to Figure
2 for location. Reinstall cover. Turn on breaker. If problem persists, contact factory.
7.
Heater Element -
Shut off power on circuit breaker. Remove cover. Measure element resistance by using an
ohmmeter or multi-meter. Obtain your reading off of termination rods with brass nuts on each heater module. Refer to
Figure x for location. This reading should be between 6 and 30 ohms for each element.
8.
Check Flow Rate
– Controlling flow rate is essential to insure proper temperature increase. In the case of the low flow
rate heater it is mandatory that the flow control be attached to the end of the faucet. Check your flow rate to insure
proper operation of the heater. Low Flow Rate Models require 0.35 GPM (1.3 LPM) to activate.
9.
Installation
– Heater must be installed in a horizontal position. The silver label will then be located in the upper left
corner as you face the heater.
10.
Water Supply
– Do not throttle water supply to inlet of Instant-Flow MICRO. Operating conditions shall not exceed
specification on page 2.
11.
Freezing
– Instant-Flow MICRO heaters must be drained and stored if installed in a location subject to freezing.
Disconnect the inlet/outlet compression fittings and blow air through one side of the heater to assist draining. Failure to
completely remove water from the unit will result in freezing and cracking.
12.
Problems?
- Call our toll-free hotline 800-447-4962 or 626-937-4270
WARNING
- This water heater is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction concerning use of the water heater by a person responsible for their safety.
- Children should be supervised to ensure that they do not play with the water heater.
- The water resistivity must not be less than 1100 OHM-CM.
- The water heater must be earth grounded.
- The water heater is not to be installed in locations where freezing can occur.
CHRONOMITE TECHNICAL SUPPORT
TOLL FREE
800-447-4962 •
LOCAL
626-937-4270 •
FAX
626-937-4279
Page 7 of 8
®
INSTANT-FLOW MICRO
TROUBLESHOOTING GUIDE
3100-003-001
II-927 06/17 REV 9
Chronomite Laboratories is a Member of Morris Group International™
ELECTRIC TANKLESS WATER HEATER - POINT OF USE
