Owners Manual

FAQ
Installation and Operational Manual
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Designer Collection
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Acrylic Freestanding Tubs
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Troubleshooting FAQ
Q: The blower will not turn on. What should I check first?
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. On systems with
multiple control boxes or equipment, ensure that all connections are intact.
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 flush 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 air jets on my tub are not blowing air bubbles. What could be the problem?
A: The keypad or other connections may have been unplugged during installation. Check that the keypad is
connected to the blower, and the blower is plugged into a working receptacle. Check that the grey air hose
from the air blower to the manifold is properly connected. If necessary, reconnect and tighten clamps.
Q. My MTI air bath appears to just turn on even if we are not in the tub.
A. MTI Designer Collection air baths are equipped with an automatic purge cycle. See the bottom section of
the operation instructions for your air system. And, check to make sure that your faucet is not dripping water
onto the sensors located on either side of the drain inside the tub.
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 fluctuations may have disrupted the purge cycle. Turn the breaker off (or
unplug the blower), wait 30 seconds, then restore power to the blower. The blower should now follow the
normal purge cycle. Be sure to check that your faucet is not dripping onto the water sensors on either side of
the drain inside of the tub.
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 preheat the incoming air.
If your tub is installed against an outside wall(s), it is recommended to adequately insulate the wall(s) to
minimize heat loss. Do not insulate the blower itself; the blower needs sufficient air space surrounding it for
proper circulation and operation.
Q. Is it safe to use bath salts or bath oils in my air bath?
A. Water soluble products such as bath salts are fine to use, however, MTI does not recommend the use
of heavy bath oils. If bath oil is used, refer to the cleaning section of your manual for proper after care and
cleaning instructions. Products containing strong natural or chemical dyes may discolor the jets and/or
controls on your tub. Check the label to ensure the products are safe for acrylic or plastics, and always use
according to the product recommendations. Avoid bath bombs with glitter, as jets can become clogged.
Q. My bath’s hydrotherapy system has been working great for years, and now has stopped working. What
should I check first?
A. Check the breaker or the GFCI outlet under the tub. Check connections that may have become damaged
due to exernal conditions, such as pests. For additional assistance, contact MTI’s Service Department.
Q. How do I find the serial or registration number on my bath?
A. The registration number can be found on a silver MTI Baths sticker attached to the blower.