Installation Sheet
12
TROUBLESHOOTING FAQ
Q: The blower will not turn on, what should I check rst?
A: Check the electrical connections. Test the outlet for power by plugging in a small lamp or hair dryer.
Check to make sure the breaker is not tripped. Replace GFCI outlet or breaker if necessary.
Q: There is a rust colored, greasy ring in my bath tub, what causes this?
A: The condition results from sediment in the water heater of the home. Drain and ush the heater
according to the manufacturer’s instructions, and then clean the interior of the tub with a mild, grease
cutting dish soap.
Q: The blower is turning on, yet the air jets on my tub are not blowing air bubbles, what could be the
problem?
A: One or more connections may have been unplugged during installation. Check that the grey air hose
from the air blower to the manifold, and from the manifold to the tub, is properly connected. If necessary,
reconnect and tighten clamps. See illustration on page 9.
Q. I have an MTI air bath, and it appears to just turn on even if we are not in the tub.
A. Each MTI Boutique Series air bath is equipped with a pair of sensors near the drain of the bath. They
appear as two small chrome buttons. Every time water is introduced into the bath, even if the air system
was not used, the air system will automatically activate approximately 7 minutes after the water has
drained out of the tub in order to purge the system of any small droplets of water. The system will turn off
in approximately 1 minute.
Q. I understand the purge cycle, however, my tub is now purging in the middle of the night, how
can I stop this from happening?
A. Small, barely detectable power uctuations may have disrupted the purge cycle. Turn the breaker off
(or unplug the blower), wait for ten seconds, then plug back in. The blower should now follow the normal
purge cycle.
Q: The air bubbles seem cool, how do I check that the blower is warming the air?
A: To verify, turn the air system on high for 4-5 minutes (you do not need to have water in the tub).
Carefully feel the grey air hose where it exits the blower. It should be warm to the touch. If it is cold,
please contact MTI for service. Please note that some skin sensitive people might experience the so-
called “cold air effect”, which is caused by the actual sensation of air bubbles running along the skin,
giving the bather a “shivering” sensation. Note: Even if the air entering the tub was hot enough to burn
the skin, this shivering effect would still persist. The heated blower is not designed to heat your bath
water, just to pre-heat the incoming air. The air hose and blower must be installed in a climate controlled
environment. Pipe insulation may be used to insulate the air hose, however, do not insulate the blower
itself; the blower needs sufcient air space surrounding it for proper circulation and operation.
Q. Is it safe to use bath salts or bath oils in my tub?
A. Water soluble products such as bath salts are ne to use, however, MTI does not recommend the use
of heavy bath oils. If bath oil is used, refer to the cleaning section of this manual for proper after care and
cleaning instructions.
Q. How can I get scratches out of my ESS tub?
A. Most scratches and scuffs can be easily sanded out. Please contact the MTI technical service
department for instructions. Deeper scratches and chips may require the services of a professional repair
technician.